./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal24.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_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/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_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/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_06f4ae0e-e08f-4f47-915f-2674a041c497/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 1d717f7740b74231fea575a9cc87b2722581b9050542b607b1082011f98f934c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:36,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:37,016 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:27:37,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:37,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:37,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:37,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:37,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:37,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:37,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:37,085 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:37,086 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:37,087 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:37,088 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:37,089 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:37,089 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:37,090 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:37,090 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:37,091 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:37,091 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:37,093 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:37,094 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:37,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:37,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:37,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:37,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:37,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:37,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:37,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:37,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:37,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:37,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:37,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:37,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:37,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:37,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:37,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:37,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:37,113 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:37,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:37,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:37,114 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:37,114 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:37,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:37,115 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_06f4ae0e-e08f-4f47-915f-2674a041c497/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d717f7740b74231fea575a9cc87b2722581b9050542b607b1082011f98f934c [2023-11-23 21:27:37,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:37,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:37,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:37,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:37,485 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:37,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal24.c [2023-11-23 21:27:40,513 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:41,158 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:41,159 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal24.c [2023-11-23 21:27:41,226 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/data/6a9886a1b/c4ebe78a911b473eb62d301baede631f/FLAG4e4403993 [2023-11-23 21:27:41,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/data/6a9886a1b/c4ebe78a911b473eb62d301baede631f [2023-11-23 21:27:41,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:41,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:41,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:41,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:41,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:41,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:41" (1/1) ... [2023-11-23 21:27:41,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7865346c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:41, skipping insertion in model container [2023-11-23 21:27:41,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:41" (1/1) ... [2023-11-23 21:27:41,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:41,882 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_06f4ae0e-e08f-4f47-915f-2674a041c497/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal24.c[1245,1258] [2023-11-23 21:27:43,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:43,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:43,504 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_06f4ae0e-e08f-4f47-915f-2674a041c497/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal24.c[1245,1258] [2023-11-23 21:27:44,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:44,639 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:44,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44 WrapperNode [2023-11-23 21:27:44,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:44,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:44,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:44,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:44,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:44,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:48,511 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41533 [2023-11-23 21:27:48,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:48,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:48,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:48,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:48,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:48,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:49,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:49,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:50,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:50,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:51,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:51,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:52,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:52,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:52,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:52,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:52,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:44" (1/1) ... [2023-11-23 21:27:52,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:52,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:52,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:52,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4ae0e-e08f-4f47-915f-2674a041c497/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:54,119 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:54,121 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:19,241 INFO L282 CfgBuilder]: Performing block encoding