./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur --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 1376729e58d24f89d32bc04e52c0a39262cea45b1130607582422b8b3a17f5eb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:52:05,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:52:05,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:52:05,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:52:05,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:52:05,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:52:05,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:52:05,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:52:05,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:52:05,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:52:05,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:52:05,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:52:05,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:52:05,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:52:05,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:52:05,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:52:05,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:52:05,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:52:05,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:52:05,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:52:05,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:52:05,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:52:05,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:52:05,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:52:05,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:52:05,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:52:05,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:52:05,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:52:05,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:52:05,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:52:05,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:52:05,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:52:05,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:52:05,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:52:05,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:52:05,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:52:05,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:52:05,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:52:05,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:52:05,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:52:05,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:52:05,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:52:05,976 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:52:05,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:52:05,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:52:05,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:52:05,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:52:05,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:52:05,979 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:52:05,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:52:05,979 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:52:05,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:52:05,980 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:52:05,981 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:52:05,981 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:52:05,981 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:52:05,981 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:52:05,982 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:52:05,982 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:52:05,982 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:52:05,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:52:05,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:52:05,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:52:05,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:52:05,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:52:05,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:52:05,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:52:05,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:52:05,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:52:05,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:52:05,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:52:05,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:52:05,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:52:05,987 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:52:05,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:52:05,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:52:05,988 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:52:05,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:52:05,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:52:05,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:52:05,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1376729e58d24f89d32bc04e52c0a39262cea45b1130607582422b8b3a17f5eb [2022-11-26 00:52:06,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:52:06,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:52:06,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:52:06,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:52:06,360 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:52:06,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c [2022-11-26 00:52:09,471 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:52:09,859 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:52:09,861 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c [2022-11-26 00:52:09,880 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data/54f692757/5fff7b380cce497e82e1d4d3af058d8e/FLAG8080242ef [2022-11-26 00:52:09,894 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data/54f692757/5fff7b380cce497e82e1d4d3af058d8e [2022-11-26 00:52:09,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:52:09,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:52:09,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:52:09,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:52:09,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:52:09,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:52:09" (1/1) ... [2022-11-26 00:52:09,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52bb3241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:09, skipping insertion in model container [2022-11-26 00:52:09,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:52:09" (1/1) ... [2022-11-26 00:52:09,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:52:09,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:52:10,251 WARN L237 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_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c[1014,1027] [2022-11-26 00:52:10,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:52:10,727 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:52:10,738 WARN L237 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_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c[1014,1027] [2022-11-26 00:52:10,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:52:10,918 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:52:10,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10 WrapperNode [2022-11-26 00:52:10,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:52:10,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:52:10,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:52:10,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:52:10,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:10,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,207 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2296 [2022-11-26 00:52:11,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:52:11,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:52:11,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:52:11,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:52:11,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,339 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:52:11,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:52:11,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:52:11,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:52:11,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (1/1) ... [2022-11-26 00:52:11,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:52:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:52:11,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:52:11,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:52:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:52:11,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:52:12,123 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:52:12,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:03:12,526 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:03:12,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:03:12,567 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:03:12,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:12 BoogieIcfgContainer [2022-11-26 01:03:12,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:03:12,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:03:12,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:03:12,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:03:12,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:52:09" (1/3) ... [2022-11-26 01:03:12,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0e4e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:03:12, skipping insertion in model container [2022-11-26 01:03:12,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:52:10" (2/3) ... [2022-11-26 01:03:12,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0e4e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:03:12, skipping insertion in model container [2022-11-26 01:03:12,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:12" (3/3) ... [2022-11-26 01:03:12,582 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lann.3.prop1-func-interl.c [2022-11-26 01:03:12,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:03:12,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:03:12,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:03:12,670 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22eac7bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:03:12,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:03:12,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-26 01:03:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 01:03:12,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:03:12,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 01:03:12,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:03:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:03:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-26 01:03:12,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:03:12,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992367286] [2022-11-26 01:03:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:12,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:03:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:03:13,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:03:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:03:13,337 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:03:13,339 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:03:13,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 01:03:13,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:03:13,348 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:03:13,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:03:13,399 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-26 01:03:13,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:03:13 BoogieIcfgContainer [2022-11-26 01:03:13,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:03:13,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:03:13,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:03:13,428 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:03:13,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:12" (3/4) ... [2022-11-26 01:03:13,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:03:13,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:03:13,434 INFO L158 Benchmark]: Toolchain (without parser) took 663535.23ms. Allocated memory was 153.1MB in the beginning and 746.6MB in the end (delta: 593.5MB). Free memory was 105.5MB in the beginning and 383.1MB in the end (delta: -277.6MB). Peak memory consumption was 318.7MB. Max. memory is 16.1GB. [2022-11-26 01:03:13,434 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory was 88.1MB in the beginning and 88.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:03:13,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1019.45ms. Allocated memory is still 153.1MB. Free memory was 105.5MB in the beginning and 80.5MB in the end (delta: 25.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-26 01:03:13,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 288.03ms. Allocated memory is still 153.1MB. Free memory was 80.5MB in the beginning and 92.7MB in the end (delta: -12.2MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-11-26 01:03:13,441 INFO L158 Benchmark]: Boogie Preprocessor took 182.79ms. Allocated memory is still 153.1MB. Free memory was 92.7MB in the beginning and 78.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 01:03:13,443 INFO L158 Benchmark]: RCFGBuilder took 661179.68ms. Allocated memory was 153.1MB in the beginning and 746.6MB in the end (delta: 593.5MB). Free memory was 78.0MB in the beginning and 445.0MB in the end (delta: -366.9MB). Peak memory consumption was 450.2MB. Max. memory is 16.1GB. [2022-11-26 01:03:13,444 INFO L158 Benchmark]: TraceAbstraction took 850.84ms. Allocated memory is still 746.6MB. Free memory was 443.9MB in the beginning and 383.1MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-26 01:03:13,444 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 746.6MB. Free memory is still 383.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:03:13,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory was 88.1MB in the beginning and 88.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1019.45ms. Allocated memory is still 153.1MB. Free memory was 105.5MB in the beginning and 80.5MB in the end (delta: 25.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 288.03ms. Allocated memory is still 153.1MB. Free memory was 80.5MB in the beginning and 92.7MB in the end (delta: -12.2MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 182.79ms. Allocated memory is still 153.1MB. Free memory was 92.7MB in the beginning and 78.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 661179.68ms. Allocated memory was 153.1MB in the beginning and 746.6MB in the end (delta: 593.5MB). Free memory was 78.0MB in the beginning and 445.0MB in the end (delta: -366.9MB). Peak memory consumption was 450.2MB. Max. memory is 16.1GB. * TraceAbstraction took 850.84ms. Allocated memory is still 746.6MB. Free memory was 443.9MB in the beginning and 383.1MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 746.6MB. Free memory is still 383.1MB. There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 262, overapproximation of bitwiseAnd at line 197. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_30 = 0; [L39] const SORT_4 var_73 = 1; [L40] const SORT_4 var_74 = 0; [L41] const SORT_2 var_86 = 2; [L42] const SORT_2 var_88 = 1; [L43] const SORT_2 var_90 = 0; [L44] const SORT_2 var_137 = 255; [L45] const SORT_2 var_144 = 24; [L46] const SORT_2 var_151 = 14; [L47] const SORT_2 var_158 = 6; [L48] const SORT_3 var_315 = 0; [L49] const SORT_4 var_317 = 24; [L50] const SORT_4 var_339 = 14; [L51] const SORT_4 var_361 = 6; [L53] SORT_1 input_85; [L54] SORT_1 input_87; [L55] SORT_1 input_89; [L56] SORT_1 input_91; [L57] SORT_1 input_97; [L58] SORT_1 input_100; [L59] SORT_1 input_101; [L60] SORT_1 input_102; [L61] SORT_1 input_103; [L62] SORT_1 input_109; [L63] SORT_1 input_112; [L64] SORT_1 input_113; [L65] SORT_1 input_114; [L66] SORT_1 input_115; [L67] SORT_1 input_121; [L68] SORT_1 input_124; [L69] SORT_1 input_125; [L70] SORT_1 input_126; [L71] SORT_1 input_127; [L72] SORT_1 input_133; [L73] SORT_1 input_136; [L74] SORT_1 input_143; [L75] SORT_1 input_150; [L76] SORT_1 input_157; [L77] SORT_1 input_164; [L78] SORT_1 input_172; [L79] SORT_1 input_174; [L80] SORT_1 input_186; [L81] SORT_1 input_194; [L82] SORT_1 input_196; [L83] SORT_1 input_208; [L84] SORT_1 input_216; [L85] SORT_1 input_218; [L86] SORT_1 input_230; [L87] SORT_1 input_238; [L88] SORT_1 input_240; [L89] SORT_1 input_252; [L90] SORT_1 input_267; [L91] SORT_1 input_282; [L92] SORT_1 input_297; [L94] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_2 init_7_arg_1 = var_5; [L129] state_6 = init_7_arg_1 [L130] SORT_2 init_9_arg_1 = var_5; [L131] state_8 = init_9_arg_1 [L132] SORT_2 init_11_arg_1 = var_5; [L133] state_10 = init_11_arg_1 [L134] SORT_2 init_13_arg_1 = var_5; [L135] state_12 = init_13_arg_1 [L136] SORT_2 init_15_arg_1 = var_5; [L137] state_14 = init_15_arg_1 [L138] SORT_2 init_17_arg_1 = var_5; [L139] state_16 = init_17_arg_1 [L140] SORT_2 init_19_arg_1 = var_5; [L141] state_18 = init_19_arg_1 [L142] SORT_2 init_21_arg_1 = var_5; [L143] state_20 = init_21_arg_1 [L144] SORT_2 init_23_arg_1 = var_5; [L145] state_22 = init_23_arg_1 [L146] SORT_2 init_25_arg_1 = var_5; [L147] state_24 = init_25_arg_1 [L148] SORT_2 init_27_arg_1 = var_5; [L149] state_26 = init_27_arg_1 [L150] SORT_2 init_29_arg_1 = var_5; [L151] state_28 = init_29_arg_1 [L152] SORT_1 init_32_arg_1 = var_30; [L153] state_31 = init_32_arg_1 [L154] SORT_1 init_34_arg_1 = var_30; [L155] state_33 = init_34_arg_1 [L156] SORT_1 init_36_arg_1 = var_30; [L157] state_35 = init_36_arg_1 [L158] SORT_1 init_38_arg_1 = var_30; [L159] state_37 = init_38_arg_1 [L160] SORT_1 init_40_arg_1 = var_30; [L161] state_39 = init_40_arg_1 [L162] SORT_1 init_42_arg_1 = var_30; [L163] state_41 = init_42_arg_1 [L164] SORT_1 init_44_arg_1 = var_30; [L165] state_43 = init_44_arg_1 [L166] SORT_1 init_46_arg_1 = var_30; [L167] state_45 = init_46_arg_1 [L168] SORT_1 init_48_arg_1 = var_30; [L169] state_47 = init_48_arg_1 [L170] SORT_1 init_50_arg_1 = var_30; [L171] state_49 = init_50_arg_1 [L172] SORT_1 init_52_arg_1 = var_30; [L173] state_51 = init_52_arg_1 [L174] SORT_1 init_54_arg_1 = var_30; [L175] state_53 = init_54_arg_1 [L176] SORT_1 init_56_arg_1 = var_30; [L177] state_55 = init_56_arg_1 [L178] SORT_1 init_58_arg_1 = var_30; [L179] state_57 = init_58_arg_1 [L180] SORT_1 init_60_arg_1 = var_30; [L181] state_59 = init_60_arg_1 [L182] SORT_1 init_62_arg_1 = var_30; [L183] state_61 = init_62_arg_1 [L184] SORT_1 init_64_arg_1 = var_30; [L185] state_63 = init_64_arg_1 [L186] SORT_1 init_66_arg_1 = var_30; [L187] state_65 = init_66_arg_1 [L188] SORT_1 init_68_arg_1 = var_30; [L189] state_67 = init_68_arg_1 [L190] SORT_1 init_70_arg_1 = var_30; [L191] state_69 = init_70_arg_1 [L192] SORT_1 init_72_arg_1 = var_30; [L193] state_71 = init_72_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_8=0, var_137=255, var_144=24, var_151=14, var_158=6, var_30=0, var_315=0, var_317=24, var_339=14, var_361=6, var_5=0, var_73=1, var_74=0, var_86=2, var_88=1, var_90=0] [L196] input_85 = __VERIFIER_nondet_uchar() [L197] input_85 = input_85 & mask_SORT_1 [L198] input_87 = __VERIFIER_nondet_uchar() [L199] input_87 = input_87 & mask_SORT_1 [L200] input_89 = __VERIFIER_nondet_uchar() [L201] input_89 = input_89 & mask_SORT_1 [L202] input_91 = __VERIFIER_nondet_uchar() [L203] input_91 = input_91 & mask_SORT_1 [L204] input_97 = __VERIFIER_nondet_uchar() [L205] input_97 = input_97 & mask_SORT_1 [L206] input_100 = __VERIFIER_nondet_uchar() [L207] input_100 = input_100 & mask_SORT_1 [L208] input_101 = __VERIFIER_nondet_uchar() [L209] input_101 = input_101 & mask_SORT_1 [L210] input_102 = __VERIFIER_nondet_uchar() [L211] input_102 = input_102 & mask_SORT_1 [L212] input_103 = __VERIFIER_nondet_uchar() [L213] input_103 = input_103 & mask_SORT_1 [L214] input_109 = __VERIFIER_nondet_uchar() [L215] input_109 = input_109 & mask_SORT_1 [L216] input_112 = __VERIFIER_nondet_uchar() [L217] input_112 = input_112 & mask_SORT_1 [L218] input_113 = __VERIFIER_nondet_uchar() [L219] input_113 = input_113 & mask_SORT_1 [L220] input_114 = __VERIFIER_nondet_uchar() [L221] input_114 = input_114 & mask_SORT_1 [L222] input_115 = __VERIFIER_nondet_uchar() [L223] input_115 = input_115 & mask_SORT_1 [L224] input_121 = __VERIFIER_nondet_uchar() [L225] input_121 = input_121 & mask_SORT_1 [L226] input_124 = __VERIFIER_nondet_uchar() [L227] input_124 = input_124 & mask_SORT_1 [L228] input_125 = __VERIFIER_nondet_uchar() [L229] input_125 = input_125 & mask_SORT_1 [L230] input_126 = __VERIFIER_nondet_uchar() [L231] input_126 = input_126 & mask_SORT_1 [L232] input_127 = __VERIFIER_nondet_uchar() [L233] input_127 = input_127 & mask_SORT_1 [L234] input_133 = __VERIFIER_nondet_uchar() [L235] input_133 = input_133 & mask_SORT_1 [L236] input_136 = __VERIFIER_nondet_uchar() [L237] input_136 = input_136 & mask_SORT_1 [L238] input_143 = __VERIFIER_nondet_uchar() [L239] input_143 = input_143 & mask_SORT_1 [L240] input_150 = __VERIFIER_nondet_uchar() [L241] input_150 = input_150 & mask_SORT_1 [L242] input_157 = __VERIFIER_nondet_uchar() [L243] input_157 = input_157 & mask_SORT_1 [L244] input_164 = __VERIFIER_nondet_uchar() [L245] input_172 = __VERIFIER_nondet_uchar() [L246] input_174 = __VERIFIER_nondet_uchar() [L247] input_186 = __VERIFIER_nondet_uchar() [L248] input_194 = __VERIFIER_nondet_uchar() [L249] input_196 = __VERIFIER_nondet_uchar() [L250] input_208 = __VERIFIER_nondet_uchar() [L251] input_216 = __VERIFIER_nondet_uchar() [L252] input_218 = __VERIFIER_nondet_uchar() [L253] input_230 = __VERIFIER_nondet_uchar() [L254] input_238 = __VERIFIER_nondet_uchar() [L255] input_240 = __VERIFIER_nondet_uchar() [L256] input_252 = __VERIFIER_nondet_uchar() [L257] input_267 = __VERIFIER_nondet_uchar() [L258] input_282 = __VERIFIER_nondet_uchar() [L259] input_297 = __VERIFIER_nondet_uchar() [L262] SORT_1 var_75_arg_0 = ~state_33; [L263] var_75_arg_0 = var_75_arg_0 & mask_SORT_1 [L264] SORT_4 var_75_arg_1 = var_73; [L265] SORT_4 var_75_arg_2 = var_74; [L266] SORT_4 var_75 = var_75_arg_0 ? var_75_arg_1 : var_75_arg_2; [L267] SORT_1 var_76_arg_0 = state_39; [L268] SORT_4 var_76_arg_1 = var_73; [L269] SORT_4 var_76_arg_2 = var_74; [L270] SORT_4 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; [L271] SORT_4 var_77_arg_0 = var_75; [L272] SORT_4 var_77_arg_1 = var_76; [L273] SORT_4 var_77 = var_77_arg_0 + var_77_arg_1; [L274] SORT_1 var_78_arg_0 = state_45; [L275] SORT_4 var_78_arg_1 = var_73; [L276] SORT_4 var_78_arg_2 = var_74; [L277] SORT_4 var_78 = var_78_arg_0 ? var_78_arg_1 : var_78_arg_2; [L278] SORT_4 var_79_arg_0 = var_77; [L279] SORT_4 var_79_arg_1 = var_78; [L280] SORT_4 var_79 = var_79_arg_0 + var_79_arg_1; [L281] SORT_1 var_80_arg_0 = state_51; [L282] SORT_4 var_80_arg_1 = var_73; [L283] SORT_4 var_80_arg_2 = var_74; [L284] SORT_4 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; [L285] SORT_4 var_81_arg_0 = var_79; [L286] SORT_4 var_81_arg_1 = var_80; [L287] SORT_4 var_81 = var_81_arg_0 + var_81_arg_1; [L288] var_81 = var_81 & mask_SORT_4 [L289] SORT_4 var_82_arg_0 = var_81; [L290] SORT_4 var_82_arg_1 = var_73; [L291] SORT_1 var_82 = var_82_arg_0 <= var_82_arg_1; [L292] SORT_1 var_83_arg_0 = ~state_71; [L293] var_83_arg_0 = var_83_arg_0 & mask_SORT_1 [L294] SORT_1 var_83_arg_1 = ~var_82; [L295] var_83_arg_1 = var_83_arg_1 & mask_SORT_1 [L296] SORT_1 var_83 = var_83_arg_0 & var_83_arg_1; [L297] var_83 = var_83 & mask_SORT_1 [L298] SORT_1 bad_84_arg_0 = var_83; [L299] CALL __VERIFIER_assert(!(bad_84_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 01:03:13,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur --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 1376729e58d24f89d32bc04e52c0a39262cea45b1130607582422b8b3a17f5eb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:03:15,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:03:15,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:03:15,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:03:15,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:03:15,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:03:15,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:03:15,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:03:15,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:03:15,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:03:15,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:03:15,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:03:15,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:03:15,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:03:15,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:03:15,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:03:15,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:03:15,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:03:15,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:03:15,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:03:15,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:03:15,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:03:15,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:03:15,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:03:15,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:03:15,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:03:15,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:03:15,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:03:15,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:03:15,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:03:15,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:03:15,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:03:15,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:03:15,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:03:15,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:03:15,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:03:15,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:03:15,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:03:15,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:03:15,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:03:15,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:03:15,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 01:03:15,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:03:15,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:03:15,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:03:15,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:03:16,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:03:16,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:03:16,002 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:03:16,002 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:03:16,002 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:03:16,002 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:03:16,003 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:03:16,004 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:03:16,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:03:16,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:03:16,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:03:16,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:03:16,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:03:16,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:03:16,007 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:03:16,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:03:16,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:03:16,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:03:16,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:03:16,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:03:16,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:03:16,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:03:16,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:16,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:03:16,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:03:16,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:03:16,010 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:03:16,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:03:16,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:03:16,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:03:16,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:03:16,012 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1376729e58d24f89d32bc04e52c0a39262cea45b1130607582422b8b3a17f5eb [2022-11-26 01:03:16,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:03:16,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:03:16,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:03:16,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:03:16,441 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:03:16,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c [2022-11-26 01:03:19,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:03:19,975 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:03:19,976 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c [2022-11-26 01:03:20,001 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data/0c4807b86/c658a95a0f10498fa42359d2b49d74c1/FLAG91734f905 [2022-11-26 01:03:20,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/data/0c4807b86/c658a95a0f10498fa42359d2b49d74c1 [2022-11-26 01:03:20,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:03:20,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:03:20,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:03:20,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:03:20,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:03:20,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:03:20" (1/1) ... [2022-11-26 01:03:20,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720e7c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:20, skipping insertion in model container [2022-11-26 01:03:20,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:03:20" (1/1) ... [2022-11-26 01:03:20,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:03:20,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:03:20,330 WARN L237 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_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c[1014,1027] [2022-11-26 01:03:20,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:03:20,816 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:03:20,827 WARN L237 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_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-func-interl.c[1014,1027] [2022-11-26 01:03:21,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:03:21,090 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:03:21,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21 WrapperNode [2022-11-26 01:03:21,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:03:21,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:03:21,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:03:21,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:03:21,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,250 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2296 [2022-11-26 01:03:21,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:03:21,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:03:21,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:03:21,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:03:21,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:03:21,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:03:21,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:03:21,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:03:21,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (1/1) ... [2022-11-26 01:03:21,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:21,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:03:21,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:03:21,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:03:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:03:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:03:22,135 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:03:22,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:03:27,050 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:03:27,057 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:03:27,058 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:03:27,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:27 BoogieIcfgContainer [2022-11-26 01:03:27,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:03:27,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:03:27,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:03:27,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:03:27,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:03:20" (1/3) ... [2022-11-26 01:03:27,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239aaf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:03:27, skipping insertion in model container [2022-11-26 01:03:27,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:21" (2/3) ... [2022-11-26 01:03:27,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239aaf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:03:27, skipping insertion in model container [2022-11-26 01:03:27,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:27" (3/3) ... [2022-11-26 01:03:27,072 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lann.3.prop1-func-interl.c [2022-11-26 01:03:27,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:03:27,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:03:27,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:03:27,161 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@424c2650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:03:27,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:03:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-26 01:03:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:03:27,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:03:27,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:03:27,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:03:27,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:03:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-26 01:03:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:03:27,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964947126] [2022-11-26 01:03:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:27,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:03:27,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:03:27,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 01:03:27,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 01:03:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:03:27,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-26 01:03:27,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:03:28,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:03:28,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:03:28,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:03:28,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964947126] [2022-11-26 01:03:28,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964947126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:03:28,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:03:28,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:03:28,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572940825] [2022-11-26 01:03:28,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:03:28,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:03:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:03:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:03:28,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:03:28,095 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-26 01:03:28,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:03:28,418 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-26 01:03:28,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:03:28,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 01:03:28,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:03:28,428 INFO L225 Difference]: With dead ends: 20 [2022-11-26 01:03:28,429 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 01:03:28,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:03:28,435 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:03:28,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:03:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 01:03:28,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-26 01:03:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-26 01:03:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 01:03:28,479 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-26 01:03:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:03:28,480 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 01:03:28,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-26 01:03:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 01:03:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:03:28,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:03:28,482 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-26 01:03:28,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:03:28,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:03:28,701 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:03:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:03:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-26 01:03:28,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:03:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691692877] [2022-11-26 01:03:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:03:28,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:03:28,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:03:28,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 01:03:28,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcc58cf-53c2-4e2b-b83a-cf104bddd955/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 01:03:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:03:29,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-26 01:03:29,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:03:33,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:03:33,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:05:35,120 WARN L233 SmtUtils]: Spent 2.00m on a formula simplification that was a NOOP. DAG size: 141 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)