./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop2-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3 --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db7933bae62e96e4998a5b2d6540bc9de25f41781d2fcd3669f0d3e992bd2368 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:12:58,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:12:58,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-24 18:12:58,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:12:58,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:12:58,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:12:58,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:12:58,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:12:58,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:12:58,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:12:58,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:12:58,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:12:58,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:12:58,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:12:58,359 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:12:58,359 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:12:58,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:12:58,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:12:58,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:12:58,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:12:58,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:12:58,360 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:12:58,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:12:58,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3 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 -> Kojak 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 -> db7933bae62e96e4998a5b2d6540bc9de25f41781d2fcd3669f0d3e992bd2368 [2024-11-24 18:12:58,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:12:58,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:12:58,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:12:58,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:12:58,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:12:58,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop2-back-serstep.c [2024-11-24 18:13:01,687 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/data/371e5d7ec/ada4a347648449a3acca5e4d86f6e4be/FLAGe869526b0 [2024-11-24 18:13:02,648 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:13:02,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop2-back-serstep.c [2024-11-24 18:13:02,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/data/371e5d7ec/ada4a347648449a3acca5e4d86f6e4be/FLAGe869526b0 [2024-11-24 18:13:02,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/data/371e5d7ec/ada4a347648449a3acca5e4d86f6e4be [2024-11-24 18:13:02,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:13:02,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:13:02,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:13:02,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:13:02,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:13:02,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:13:02" (1/1) ... [2024-11-24 18:13:02,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f15c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:02, skipping insertion in model container [2024-11-24 18:13:02,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:13:02" (1/1) ... [2024-11-24 18:13:03,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:13:03,658 WARN L250 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_19d8140d-2ef0-436f-bf06-290c19cfe119/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop2-back-serstep.c[1181,1194] [2024-11-24 18:13:06,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:13:06,706 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:13:06,717 WARN L250 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_19d8140d-2ef0-436f-bf06-290c19cfe119/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop2-back-serstep.c[1181,1194] [2024-11-24 18:13:08,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:13:08,768 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:13:08,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08 WrapperNode [2024-11-24 18:13:08,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:13:08,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:13:08,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:13:08,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:13:08,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:09,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:19,757 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109745 [2024-11-24 18:13:19,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:13:19,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:13:19,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:13:19,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:13:19,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:19,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:22,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:22,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:25,291 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:25,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:26,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:26,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:26,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:28,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:13:28,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:13:28,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:13:28,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:13:28,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:13:08" (1/1) ... [2024-11-24 18:13:28,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:13:28,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:13:28,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:13:28,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19d8140d-2ef0-436f-bf06-290c19cfe119/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:13:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:13:34,552 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:13:34,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation