./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop4-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop4-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 f7c3258277a9924eab4b06cb8d8e9a431bdb630d99f2265cca09f7ababbeffe7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:47,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:47,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:35:47,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:47,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:47,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:47,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:47,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:47,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:47,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:47,850 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:47,851 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:47,851 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:47,853 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:47,854 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:47,854 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:47,855 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:47,855 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:47,856 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:47,856 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:47,857 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:47,858 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:47,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:47,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:47,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:47,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:47,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:47,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:47,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:47,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:47,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:47,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:47,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:47,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:47,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:47,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:47,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:47,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:47,867 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:47,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:47,868 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:47,868 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:47,869 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:47,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:47,870 INFO L153 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_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7c3258277a9924eab4b06cb8d8e9a431bdb630d99f2265cca09f7ababbeffe7 [2023-11-23 20:35:48,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:48,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:48,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:48,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:48,183 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:48,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop4-func-interl.c [2023-11-23 20:35:51,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:51,870 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:51,871 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop4-func-interl.c [2023-11-23 20:35:51,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/data/9473294c5/559dc6248aae46b994e62720cde8a89f/FLAG8293b1833 [2023-11-23 20:35:51,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/data/9473294c5/559dc6248aae46b994e62720cde8a89f [2023-11-23 20:35:51,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:51,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:51,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:51,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:51,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:51,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca5d29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51, skipping insertion in model container [2023-11-23 20:35:51,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:52,067 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:52,355 WARN L240 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_5fffa4bf-75e7-494f-b96c-bbf135e7d703/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop4-func-interl.c[1171,1184] [2023-11-23 20:35:53,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:53,133 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:53,146 WARN L240 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_5fffa4bf-75e7-494f-b96c-bbf135e7d703/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop4-func-interl.c[1171,1184] [2023-11-23 20:35:53,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:53,635 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:53,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53 WrapperNode [2023-11-23 20:35:53,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:53,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:53,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:53,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:53,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:53,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:55,781 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14485 [2023-11-23 20:35:55,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:55,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:55,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:55,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:55,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:55,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:56,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:56,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:57,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:57,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:57,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:57,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:57,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:57,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:57,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:57,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:58,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:53" (1/1) ... [2023-11-23 20:35:58,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:58,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:58,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:58,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fffa4bf-75e7-494f-b96c-bbf135e7d703/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:59,033 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:59,036 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:10,114 INFO L282 CfgBuilder]: Performing block encoding