./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0d01e0213fc4e738a69e9f06f81fbb14a2df2e0f8770103d53638b50197b7d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:02:26,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:02:26,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:02:26,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:02:26,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:02:26,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:02:26,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:02:26,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:02:26,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:02:26,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:02:26,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:02:26,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:02:26,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:02:26,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:02:26,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:02:26,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:02:26,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:02:26,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:02:26,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:02:26,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:02:26,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:02:26,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:02:26,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:02:26,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:02:26,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:02:26,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:02:26,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:02:26,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:02:26,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:02:26,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:02:26,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:02:26,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:02:26,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:02:26,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:02:26,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:02:26,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:02:26,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:02:26,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:02:26,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:02:26,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:02:26,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:02:26,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:02:27,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:02:27,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:02:27,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:02:27,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:02:27,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:02:27,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:02:27,033 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:02:27,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:02:27,033 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:02:27,034 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:02:27,035 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:02:27,035 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:02:27,036 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:02:27,036 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:02:27,036 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:02:27,037 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:02:27,037 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:02:27,037 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:02:27,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:02:27,039 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:02:27,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:02:27,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:02:27,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:02:27,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:02:27,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:02:27,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:02:27,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:02:27,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:02:27,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:02:27,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:02:27,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:02:27,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:02:27,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:02:27,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:02:27,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:02:27,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:02:27,046 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:02:27,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:02:27,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:02:27,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:02:27,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:02:27,048 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_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d01e0213fc4e738a69e9f06f81fbb14a2df2e0f8770103d53638b50197b7d1 [2021-11-21 01:02:27,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:02:27,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:02:27,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:02:27,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:02:27,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:02:27,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-11-21 01:02:27,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/7b978a0c0/60f1a367c26e470a9e61c207e601268c/FLAGbe5de9164 [2021-11-21 01:02:28,045 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:02:28,046 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-11-21 01:02:28,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/7b978a0c0/60f1a367c26e470a9e61c207e601268c/FLAGbe5de9164 [2021-11-21 01:02:28,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/7b978a0c0/60f1a367c26e470a9e61c207e601268c [2021-11-21 01:02:28,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:02:28,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:02:28,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:02:28,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:02:28,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:02:28,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43be741b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28, skipping insertion in model container [2021-11-21 01:02:28,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:02:28,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:02:28,713 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_e11d231d-ff0f-44e7-83dc-03109c6eb54b/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-11-21 01:02:28,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:02:28,728 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:02:28,743 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_e11d231d-ff0f-44e7-83dc-03109c6eb54b/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-11-21 01:02:28,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:02:28,759 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:02:28,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28 WrapperNode [2021-11-21 01:02:28,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:02:28,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:02:28,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:02:28,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:02:28,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,799 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-21 01:02:28,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:02:28,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:02:28,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:02:28,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:02:28,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:02:28,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:02:28,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:02:28,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:02:28,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (1/1) ... [2021-11-21 01:02:28,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:02:28,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:02:28,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:02:28,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:02:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:02:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:02:28,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:02:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:02:28,972 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:02:28,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:02:29,057 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:02:29,073 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:02:29,074 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:02:29,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:02:29 BoogieIcfgContainer [2021-11-21 01:02:29,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:02:29,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:02:29,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:02:29,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:02:29,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:02:28" (1/3) ... [2021-11-21 01:02:29,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a29e5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:02:29, skipping insertion in model container [2021-11-21 01:02:29,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:28" (2/3) ... [2021-11-21 01:02:29,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a29e5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:02:29, skipping insertion in model container [2021-11-21 01:02:29,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:02:29" (3/3) ... [2021-11-21 01:02:29,088 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2021-11-21 01:02:29,094 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:02:29,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:02:29,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:02:29,166 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 [2021-11-21 01:02:29,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:02:29,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:02:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 01:02:29,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:02:29,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 01:02:29,190 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:02:29,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:02:29,197 INFO L85 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2021-11-21 01:02:29,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:02:29,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179185890] [2021-11-21 01:02:29,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:02:29,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:02:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:02:29,325 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:02:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:02:29,362 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:02:29,364 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:02:29,366 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:02:29,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:02:29,374 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-21 01:02:29,378 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:02:29,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:02:29 BoogieIcfgContainer [2021-11-21 01:02:29,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:02:29,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:02:29,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:02:29,401 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:02:29,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:02:29" (3/4) ... [2021-11-21 01:02:29,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:02:29,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:02:29,407 INFO L158 Benchmark]: Toolchain (without parser) took 944.92ms. Allocated memory is still 100.7MB. Free memory was 66.5MB in the beginning and 52.0MB in the end (delta: 14.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-21 01:02:29,408 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:02:29,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.28ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 75.7MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:02:29,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.83ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 74.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:02:29,410 INFO L158 Benchmark]: Boogie Preprocessor took 19.96ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:02:29,411 INFO L158 Benchmark]: RCFGBuilder took 255.87ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 65.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:02:29,412 INFO L158 Benchmark]: TraceAbstraction took 320.55ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 52.4MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 01:02:29,413 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 100.7MB. Free memory was 52.4MB in the beginning and 52.0MB in the end (delta: 474.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:02:29,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.28ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 75.7MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.83ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 74.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.96ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.87ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 65.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 320.55ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 52.4MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 100.7MB. Free memory was 52.4MB in the beginning and 52.0MB in the end (delta: 474.7kB). Peak memory consumption was 2.1MB. 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: 14]: 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 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; VAL [port=90, result_8=250] [L9] COND TRUE result_8 == 0xfa VAL [port=90, result_8=250] [L14] reach_error() VAL [port=90, result_8=250] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 [2021-11-21 01:02:29,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0d01e0213fc4e738a69e9f06f81fbb14a2df2e0f8770103d53638b50197b7d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:02:32,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:02:32,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:02:32,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:02:32,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:02:32,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:02:32,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:02:32,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:02:32,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:02:32,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:02:32,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:02:32,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:02:32,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:02:32,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:02:32,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:02:32,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:02:32,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:02:32,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:02:32,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:02:32,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:02:32,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:02:32,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:02:32,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:02:32,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:02:32,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:02:32,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:02:32,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:02:32,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:02:32,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:02:32,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:02:32,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:02:32,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:02:32,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:02:32,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:02:32,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:02:32,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:02:32,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:02:32,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:02:32,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:02:32,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:02:32,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:02:32,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:02:32,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:02:32,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:02:32,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:02:32,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:02:32,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:02:32,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:02:32,713 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:02:32,713 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:02:32,713 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:02:32,713 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:02:32,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:02:32,715 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:02:32,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:02:32,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:02:32,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:02:32,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:02:32,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:02:32,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:02:32,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:02:32,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:02:32,719 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:02:32,719 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:02:32,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:02:32,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:02:32,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:02:32,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:02:32,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:02:32,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:02:32,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:02:32,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:02:32,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:02:32,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:02:32,722 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:02:32,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:02:32,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:02:32,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:02:32,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:02:32,723 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_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d01e0213fc4e738a69e9f06f81fbb14a2df2e0f8770103d53638b50197b7d1 [2021-11-21 01:02:33,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:02:33,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:02:33,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:02:33,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:02:33,306 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:02:33,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-11-21 01:02:33,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/dd82f752d/68ae9e4cce0c4867bba5619b9d62d1ba/FLAG6f37fc5af [2021-11-21 01:02:34,119 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:02:34,121 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-11-21 01:02:34,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/dd82f752d/68ae9e4cce0c4867bba5619b9d62d1ba/FLAG6f37fc5af [2021-11-21 01:02:34,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/data/dd82f752d/68ae9e4cce0c4867bba5619b9d62d1ba [2021-11-21 01:02:34,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:02:34,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:02:34,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:02:34,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:02:34,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:02:34,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501cf746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34, skipping insertion in model container [2021-11-21 01:02:34,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:02:34,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:02:34,674 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_e11d231d-ff0f-44e7-83dc-03109c6eb54b/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-11-21 01:02:34,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:02:34,694 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:02:34,711 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_e11d231d-ff0f-44e7-83dc-03109c6eb54b/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-11-21 01:02:34,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:02:34,729 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:02:34,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34 WrapperNode [2021-11-21 01:02:34,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:02:34,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:02:34,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:02:34,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:02:34,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,770 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-21 01:02:34,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:02:34,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:02:34,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:02:34,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:02:34,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:02:34,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:02:34,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:02:34,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:02:34,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (1/1) ... [2021-11-21 01:02:34,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:02:34,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:02:34,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:02:34,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:02:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:02:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:02:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:02:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:02:35,009 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:02:35,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:02:35,091 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:02:35,098 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:02:35,099 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:02:35,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:02:35 BoogieIcfgContainer [2021-11-21 01:02:35,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:02:35,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:02:35,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:02:35,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:02:35,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:02:34" (1/3) ... [2021-11-21 01:02:35,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365a1d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:02:35, skipping insertion in model container [2021-11-21 01:02:35,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:02:34" (2/3) ... [2021-11-21 01:02:35,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365a1d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:02:35, skipping insertion in model container [2021-11-21 01:02:35,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:02:35" (3/3) ... [2021-11-21 01:02:35,112 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2021-11-21 01:02:35,118 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:02:35,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:02:35,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:02:35,189 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 [2021-11-21 01:02:35,189 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:02:35,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 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) [2021-11-21 01:02:35,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:02:35,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:02:35,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:02:35,213 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:02:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:02:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-11-21 01:02:35,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:02:35,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061778024] [2021-11-21 01:02:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:02:35,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:02:35,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:02:35,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:02:35,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:02:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:02:35,296 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:02:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:02:35,343 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-21 01:02:35,346 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:02:35,363 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:02:35,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:02:35,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:02:35,587 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-21 01:02:35,590 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:02:35,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:02:35 BoogieIcfgContainer [2021-11-21 01:02:35,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:02:35,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:02:35,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:02:35,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:02:35,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:02:35" (3/4) ... [2021-11-21 01:02:35,617 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 01:02:35,675 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:02:35,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:02:35,677 INFO L158 Benchmark]: Toolchain (without parser) took 1208.39ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 45.4MB in the end (delta: -2.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-11-21 01:02:35,677 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 62.9MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:02:35,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.07ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 33.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:02:35,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.18ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 32.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:02:35,680 INFO L158 Benchmark]: Boogie Preprocessor took 56.31ms. Allocated memory is still 62.9MB. Free memory was 32.1MB in the beginning and 46.5MB in the end (delta: -14.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 01:02:35,680 INFO L158 Benchmark]: RCFGBuilder took 272.57ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 39.0MB in the end (delta: 7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 01:02:35,681 INFO L158 Benchmark]: TraceAbstraction took 508.86ms. Allocated memory is still 62.9MB. Free memory was 38.6MB in the beginning and 27.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 01:02:35,682 INFO L158 Benchmark]: Witness Printer took 61.90ms. Allocated memory is still 62.9MB. Free memory was 27.8MB in the beginning and 45.4MB in the end (delta: -17.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-21 01:02:35,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 62.9MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.07ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 33.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.18ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 32.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.31ms. Allocated memory is still 62.9MB. Free memory was 32.1MB in the beginning and 46.5MB in the end (delta: -14.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 272.57ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 39.0MB in the end (delta: 7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 508.86ms. Allocated memory is still 62.9MB. Free memory was 38.6MB in the beginning and 27.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 61.90ms. Allocated memory is still 62.9MB. Free memory was 27.8MB in the beginning and 45.4MB in the end (delta: -17.5MB). Peak memory consumption was 5.9MB. 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 - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; VAL [port=90, result_8=250] [L9] COND TRUE result_8 == 0xfa VAL [port=90, result_8=250] [L14] reach_error() VAL [port=90, result_8=250] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 0.0s 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 proved your program to be incorrect! [2021-11-21 01:02:35,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11d231d-ff0f-44e7-83dc-03109c6eb54b/bin/utaipan-TEXQjIfE4P/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