./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.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_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/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_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/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_60ac9d9b-656e-4bd3-93ad-4be378757c71/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 b4465c74efdc25642ea8f19f13440d69aef46522638de8a0b28a0d0c861c44ae --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:14:27,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:14:27,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-24 18:14:27,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:14:27,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:14:27,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:14:27,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:14:27,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:14:27,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:14:27,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:14:27,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:14:27,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:14:27,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:14:27,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:14:27,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:14:27,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:14:27,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:14:27,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:14:27,970 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:14:27,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:14:27,970 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:14:27,970 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:14:27,970 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:14:27,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:14:27,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:14:27,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:14:27,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:14:27,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:14:27,971 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:14:27,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:14:27,971 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_60ac9d9b-656e-4bd3-93ad-4be378757c71/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 -> b4465c74efdc25642ea8f19f13440d69aef46522638de8a0b28a0d0c861c44ae [2024-11-24 18:14:28,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:14:28,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:14:28,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:14:28,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:14:28,363 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:14:28,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c [2024-11-24 18:14:31,646 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/data/b939cfc98/501143a2455b4bf8b02cd90ef6db0298/FLAG350e3d3d0 [2024-11-24 18:14:32,429 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:14:32,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c [2024-11-24 18:14:32,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/data/b939cfc98/501143a2455b4bf8b02cd90ef6db0298/FLAG350e3d3d0 [2024-11-24 18:14:32,516 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/data/b939cfc98/501143a2455b4bf8b02cd90ef6db0298 [2024-11-24 18:14:32,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:14:32,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:14:32,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:14:32,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:14:32,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:14:32,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:14:32" (1/1) ... [2024-11-24 18:14:32,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fd3002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:32, skipping insertion in model container [2024-11-24 18:14:32,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:14:32" (1/1) ... [2024-11-24 18:14:32,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:14:33,040 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_60ac9d9b-656e-4bd3-93ad-4be378757c71/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c[1183,1196] [2024-11-24 18:14:34,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:14:34,625 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:14:34,636 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_60ac9d9b-656e-4bd3-93ad-4be378757c71/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c[1183,1196] [2024-11-24 18:14:35,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:14:35,659 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:14:35,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35 WrapperNode [2024-11-24 18:14:35,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:14:35,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:14:35,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:14:35,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:14:35,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:35,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:39,684 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37856 [2024-11-24 18:14:39,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:14:39,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:14:39,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:14:39,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:14:39,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:39,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:40,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:40,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:41,688 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:41,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:41,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:42,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:42,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:43,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:14:43,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:14:43,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:14:43,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:14:43,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:14:35" (1/1) ... [2024-11-24 18:14:43,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:14:43,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:14:43,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:14:43,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60ac9d9b-656e-4bd3-93ad-4be378757c71/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:14:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:14:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:14:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:14:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:14:45,657 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:14:45,659 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:18:37,846 INFO L? ?]: Removed 21203 outVars from TransFormulas that were not future-live. [2024-11-24 18:18:37,846 INFO L283 CfgBuilder]: Performing block encoding