./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop5-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_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/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_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop5-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/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_90239276-5a06-4bbf-b98d-becbb1522a45/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 342eecb513b8d50b2235537e3d2e38ed5a0e71e5acc77964fc6a1bc843ce788b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:41:33,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:41:33,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-25 03:41:33,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:41:33,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:41:33,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:41:33,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:41:33,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:41:33,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:41:33,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:41:33,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:41:33,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:41:33,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:41:33,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:41:33,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:41:33,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:41:33,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:41:33,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:41:33,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:41:33,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:41:33,515 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:41:33,515 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:41:33,515 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:41:33,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:41:33,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:41:33,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:41:33,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:41:33,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:41:33,516 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:41:33,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:41:33,517 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_90239276-5a06-4bbf-b98d-becbb1522a45/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 -> 342eecb513b8d50b2235537e3d2e38ed5a0e71e5acc77964fc6a1bc843ce788b [2024-11-25 03:41:33,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:41:33,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:41:33,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:41:33,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:41:33,869 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:41:33,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop5-back-serstep.c [2024-11-25 03:41:36,925 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/data/d57e74c00/14bae526b35f4fdc855a9f03d92b029a/FLAGe390c714a [2024-11-25 03:41:37,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:41:37,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop5-back-serstep.c [2024-11-25 03:41:37,724 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/data/d57e74c00/14bae526b35f4fdc855a9f03d92b029a/FLAGe390c714a [2024-11-25 03:41:37,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/data/d57e74c00/14bae526b35f4fdc855a9f03d92b029a [2024-11-25 03:41:37,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:41:37,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:41:37,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:41:37,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:41:37,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:41:37,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:41:37" (1/1) ... [2024-11-25 03:41:37,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bacff59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:37, skipping insertion in model container [2024-11-25 03:41:37,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:41:37" (1/1) ... [2024-11-25 03:41:38,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:41:38,416 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_90239276-5a06-4bbf-b98d-becbb1522a45/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop5-back-serstep.c[1180,1193] [2024-11-25 03:41:40,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:41:40,231 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:41:40,244 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_90239276-5a06-4bbf-b98d-becbb1522a45/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop5-back-serstep.c[1180,1193] [2024-11-25 03:41:41,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:41:41,531 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:41:41,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41 WrapperNode [2024-11-25 03:41:41,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:41:41,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:41:41,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:41:41,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:41:41,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:41,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:46,515 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49095 [2024-11-25 03:41:46,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:41:46,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:41:46,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:41:46,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:41:46,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:46,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:47,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:47,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:49,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:49,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:49,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:49,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:49,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:50,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:41:50,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:41:50,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:41:50,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:41:50,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:41" (1/1) ... [2024-11-25 03:41:50,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:41:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:41:50,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:41:50,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90239276-5a06-4bbf-b98d-becbb1522a45/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:41:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:41:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:41:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:41:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:41:54,223 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:41:54,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:49:14,908 INFO L? ?]: Removed 27763 outVars from TransFormulas that were not future-live. [2024-11-25 03:49:14,908 INFO L283 CfgBuilder]: Performing block encoding