./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV --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 d9d33ce4a1076948815d2c6f8aaf04473893994154afdbe53d4c08820caa8354 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:48:13,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:48:13,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-11 23:48:13,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:48:13,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:48:13,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:48:13,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:48:13,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:48:13,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:48:13,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:48:13,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:48:13,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:48:13,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:48:13,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:48:13,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:48:13,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:48:13,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:48:13,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:48:13,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:48:13,403 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:48:13,403 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:48:13,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:48:13,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:48:13,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:48:13,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:48:13,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:48:13,407 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:48:13,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:48:13,408 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:48:13,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9d33ce4a1076948815d2c6f8aaf04473893994154afdbe53d4c08820caa8354 [2023-11-11 23:48:13,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:48:13,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:48:13,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:48:13,781 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:48:13,781 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:48:13,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-back-serstep.c [2023-11-11 23:48:16,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:48:17,381 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:48:17,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-back-serstep.c [2023-11-11 23:48:17,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/data/ae538c740/42d67b5011014437ab85836976fbbb25/FLAGcfe24fb90 [2023-11-11 23:48:17,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/data/ae538c740/42d67b5011014437ab85836976fbbb25 [2023-11-11 23:48:17,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:48:17,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:48:17,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:48:17,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:48:17,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:48:17,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:48:17" (1/1) ... [2023-11-11 23:48:17,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7ac55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:17, skipping insertion in model container [2023-11-11 23:48:17,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:48:17" (1/1) ... [2023-11-11 23:48:17,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:48:17,739 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_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-back-serstep.c[1172,1185] [2023-11-11 23:48:18,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:48:18,276 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:48:18,289 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_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.3.prop1-back-serstep.c[1172,1185] [2023-11-11 23:48:18,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:48:18,739 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:48:18,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18 WrapperNode [2023-11-11 23:48:18,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:48:18,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:48:18,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:48:18,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:48:18,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:18,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:20,070 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10349 [2023-11-11 23:48:20,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:48:20,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:48:20,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:48:20,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:48:20,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:20,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:20,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:20,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:20,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:20,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:21,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:21,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:21,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:48:21,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:48:21,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:48:21,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:48:21,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:48:18" (1/1) ... [2023-11-11 23:48:21,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:48:21,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:48:21,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:48:21,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7cae690-fba5-4d56-8f3d-bb5400ebb9d0/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:48:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:48:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:48:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:48:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:48:22,220 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:48:22,261 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:48:29,724 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:48:48,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:48:48,629 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:48:48,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:48:48 BoogieIcfgContainer [2023-11-11 23:48:48,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:48:48,635 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:48:48,635 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:48:48,646 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:48:48,646 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:48:48" (1/1) ... [2023-11-11 23:48:48,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:48:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:48,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-11 23:48:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-11 23:48:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:48:48,716 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:48,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.