./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh --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 2b030325ffd6ab6d140b52f61e6751a0e6817fbb80bf57dc6bd6fb6de02225ff --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:38:16,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:38:16,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 16:38:16,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:38:16,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:38:16,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:38:16,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:38:16,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:38:16,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:38:16,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:38:16,844 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:38:16,845 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:38:16,845 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:38:16,846 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:38:16,846 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:38:16,847 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:38:16,847 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:38:16,848 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:38:16,848 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:38:16,849 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:38:16,849 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:38:16,850 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:38:16,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:38:16,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:38:16,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:38:16,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:38:16,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:38:16,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:38:16,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:38:16,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:38:16,855 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:38:16,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:38:16,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:38:16,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:38:16,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:38:16,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:38:16,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:38:16,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:38:16,857 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:38:16,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:38:16,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:38:16,858 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:38:16,858 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:38:16,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:38:16,858 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_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b030325ffd6ab6d140b52f61e6751a0e6817fbb80bf57dc6bd6fb6de02225ff [2023-12-02 16:38:17,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:38:17,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:38:17,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:38:17,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:38:17,100 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:38:17,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop1-func-interl.c [2023-12-02 16:38:19,844 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:38:21,161 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:38:21,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop1-func-interl.c [2023-12-02 16:38:21,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/data/90aedf549/18c74c31ee324f61932acbddba0f5dfe/FLAG325c44e8c [2023-12-02 16:38:21,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/data/90aedf549/18c74c31ee324f61932acbddba0f5dfe [2023-12-02 16:38:21,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:38:21,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:38:21,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:38:21,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:38:21,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:38:21,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:38:21" (1/1) ... [2023-12-02 16:38:21,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9d1705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:21, skipping insertion in model container [2023-12-02 16:38:21,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:38:21" (1/1) ... [2023-12-02 16:38:21,867 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:38:22,608 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_edd02afd-8374-4e72-8ca1-a8b72c9091b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop1-func-interl.c[1180,1193] [2023-12-02 16:38:26,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:38:26,752 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:38:26,765 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_edd02afd-8374-4e72-8ca1-a8b72c9091b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop1-func-interl.c[1180,1193] [2023-12-02 16:38:29,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:38:29,960 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:38:29,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29 WrapperNode [2023-12-02 16:38:29,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:38:29,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:38:29,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:38:29,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:38:29,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:38:31,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:38:49,163 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 312453 [2023-12-02 16:38:49,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:38:49,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:38:49,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:38:49,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:38:49,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:38:49,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:38:55,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:38:55,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:39:02,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:39:02,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:39:04,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:39:05,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:39:08,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:39:08,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:39:08,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:39:08,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:39:08,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:38:29" (1/1) ... [2023-12-02 16:39:08,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:39:08,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:39:08,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:39:09,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd02afd-8374-4e72-8ca1-a8b72c9091b1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:39:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:39:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:39:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:39:09,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:39:17,742 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:39:17,744 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:42:20,982 INFO L282 CfgBuilder]: Performing block encoding