./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/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_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/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_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/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 6a220f8dcff64601b010fb4dfa1a3b29a5a7bd590e68777d73049c21b6b6c169 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:12:34,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:12:34,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-19 03:12:34,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:12:34,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:12:34,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:12:34,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:12:34,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:12:34,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:12:34,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:12:34,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:12:34,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:12:34,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:12:34,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:12:34,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:12:34,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:12:34,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:12:34,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:12:34,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:12:34,416 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:12:34,417 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:12:34,423 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:12:34,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:12:34,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:12:34,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:12:34,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:12:34,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:12:34,443 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:12:34,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:12:34,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:12:34,445 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_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a220f8dcff64601b010fb4dfa1a3b29a5a7bd590e68777d73049c21b6b6c169 [2023-11-19 03:12:34,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:12:34,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:12:34,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:12:34,819 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:12:34,820 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:12:34,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop1-back-serstep.c [2023-11-19 03:12:37,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:12:38,660 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:12:38,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop1-back-serstep.c [2023-11-19 03:12:38,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/data/b8339bf8b/a389cd8f74c942b58958363e00e6e59c/FLAG70558c1fa [2023-11-19 03:12:38,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/data/b8339bf8b/a389cd8f74c942b58958363e00e6e59c [2023-11-19 03:12:38,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:12:38,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:12:38,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:12:38,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:12:38,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:12:38,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:12:38" (1/1) ... [2023-11-19 03:12:38,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773e1311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:38, skipping insertion in model container [2023-11-19 03:12:38,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:12:38" (1/1) ... [2023-11-19 03:12:39,040 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:12:39,511 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_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop1-back-serstep.c[1180,1193] [2023-11-19 03:12:41,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:12:41,387 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:12:41,401 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_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.4.prop1-back-serstep.c[1180,1193] [2023-11-19 03:12:42,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:12:43,002 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:12:43,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43 WrapperNode [2023-11-19 03:12:43,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:12:43,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:12:43,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:12:43,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:12:43,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:43,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:48,391 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55698 [2023-11-19 03:12:48,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:12:48,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:12:48,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:12:48,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:12:48,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:48,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:49,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:49,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:52,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:52,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:52,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:53,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:54,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:12:54,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:12:54,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:12:54,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:12:54,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:12:43" (1/1) ... [2023-11-19 03:12:54,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:12:54,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:12:54,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:12:54,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ba2677-bb8e-4319-86ef-8aa7e6fb7d02/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:12:54,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:12:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:12:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:12:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:12:56,432 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:12:56,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation