./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.4.prop1-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_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 726b3f7bacffa37402890695bfdc57621f9fcdf277279ed4a19ba4e8785af27f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:00:54,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:00:54,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 06:00:54,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:00:54,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:00:54,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:00:54,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:00:54,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:00:54,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:00:54,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:00:54,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:00:54,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:00:54,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:00:54,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:00:54,604 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:00:54,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:00:54,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:00:54,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:00:54,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:00:54,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:00:54,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:00:54,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:00:54,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:00:54,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:00:54,607 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 726b3f7bacffa37402890695bfdc57621f9fcdf277279ed4a19ba4e8785af27f [2024-12-02 06:00:54,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:00:54,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:00:54,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:00:54,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:00:54,862 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:00:54,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.4.prop1-back-serstep.c [2024-12-02 06:00:57,499 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/data/1a4e3bd87/2a7833fa1faa4d0baa6f07c5d6c6e272/FLAG459034f3a [2024-12-02 06:00:58,129 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:00:58,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.4.prop1-back-serstep.c [2024-12-02 06:00:58,172 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/data/1a4e3bd87/2a7833fa1faa4d0baa6f07c5d6c6e272/FLAG459034f3a [2024-12-02 06:00:58,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/data/1a4e3bd87/2a7833fa1faa4d0baa6f07c5d6c6e272 [2024-12-02 06:00:58,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:00:58,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:00:58,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:00:58,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:00:58,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:00:58,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:00:58" (1/1) ... [2024-12-02 06:00:58,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325b7963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:00:58, skipping insertion in model container [2024-12-02 06:00:58,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:00:58" (1/1) ... [2024-12-02 06:00:58,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:00:58,984 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_e4218580-0635-493d-a694-10b46bf1e75b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.4.prop1-back-serstep.c[1173,1186] [2024-12-02 06:01:00,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:01:00,295 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:01:00,302 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_e4218580-0635-493d-a694-10b46bf1e75b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.msmie.4.prop1-back-serstep.c[1173,1186] [2024-12-02 06:01:01,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:01:01,592 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:01:01,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01 WrapperNode [2024-12-02 06:01:01,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:01:01,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:01:01,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:01:01,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:01:01,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:01,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:06,578 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73451 [2024-12-02 06:01:06,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:01:06,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:01:06,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:01:06,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:01:06,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:06,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:07,822 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:08,414 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:01:08,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:08,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:09,521 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:09,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:09,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:10,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:10,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:11,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:01:11,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:01:11,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:01:11,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:01:11,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:01:01" (1/1) ... [2024-12-02 06:01:11,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:01:11,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:01:11,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:01:11,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4218580-0635-493d-a694-10b46bf1e75b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:01:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:01:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:01:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:01:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:01:13,705 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:01:13,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation