./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL --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 ca1c02322b156793033e66bc2222c62b5ab8fd46700d3b495737c8bc689dc2cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:19:53,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:19:54,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-19 03:19:54,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:19:54,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:19:54,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:19:54,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:19:54,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:19:54,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:19:54,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:19:54,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:19:54,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:19:54,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:19:54,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:19:54,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:19:54,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:19:54,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:19:54,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:19:54,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:19:54,110 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:19:54,110 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:19:54,111 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:19:54,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:19:54,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:19:54,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:19:54,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:19:54,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:19:54,114 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:19:54,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:19:54,115 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:19:54,116 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_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca1c02322b156793033e66bc2222c62b5ab8fd46700d3b495737c8bc689dc2cd [2023-11-19 03:19:54,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:19:54,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:19:54,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:19:54,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:19:54,566 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:19:54,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-back-serstep.c [2023-11-19 03:19:57,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:19:58,368 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:19:58,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-back-serstep.c [2023-11-19 03:19:58,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/data/c5e7cf7eb/644871ee525845ba871728b7d7420b55/FLAGfaa7c533d [2023-11-19 03:19:58,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/data/c5e7cf7eb/644871ee525845ba871728b7d7420b55 [2023-11-19 03:19:58,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:19:58,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:19:58,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:19:58,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:19:58,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:19:58,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:19:58" (1/1) ... [2023-11-19 03:19:58,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5a210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:19:58, skipping insertion in model container [2023-11-19 03:19:58,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:19:58" (1/1) ... [2023-11-19 03:19:58,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:19:58,837 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_915cadee-be99-42df-b8da-2ad1ad0c8b57/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-back-serstep.c[1171,1184] [2023-11-19 03:19:59,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:19:59,613 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:19:59,657 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_915cadee-be99-42df-b8da-2ad1ad0c8b57/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.4.prop1-back-serstep.c[1171,1184] [2023-11-19 03:20:00,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:00,025 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:20:00,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00 WrapperNode [2023-11-19 03:20:00,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:00,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:00,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:20:00,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:20:00,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:00,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:01,798 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12509 [2023-11-19 03:20:01,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:01,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:20:01,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:20:01,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:20:01,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:01,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:02,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:02,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:02,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:03,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:03,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:03,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:03,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:20:03,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:20:03,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:20:03,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:20:03,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:00" (1/1) ... [2023-11-19 03:20:03,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:20:03,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:20:03,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:20:03,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915cadee-be99-42df-b8da-2ad1ad0c8b57/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:20:03,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:20:03,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:20:03,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:20:03,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:20:04,431 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:20:04,433 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:20:14,304 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:20:41,768 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:20:41,769 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:20:41,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:41 BoogieIcfgContainer [2023-11-19 03:20:41,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:20:41,776 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:20:41,776 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:20:41,789 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:20:41,789 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:41" (1/1) ... [2023-11-19 03:20:41,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier