./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk --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 5966bb8f616f22e4a55aa535b25716956e79407072499739e468fd9188a664ce --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:05:35,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:05:35,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-08 22:05:35,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:05:35,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:05:35,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:05:35,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:05:35,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:05:35,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:05:35,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:05:35,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:05:35,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:05:35,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:05:35,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:05:35,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:05:35,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:05:35,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:05:35,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:05:35,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:05:35,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:05:35,633 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:05:35,633 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:05:35,634 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:05:35,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:05:35,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:35,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:05:35,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:05:35,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:05:35,637 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:05:35,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:05:35,638 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_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5966bb8f616f22e4a55aa535b25716956e79407072499739e468fd9188a664ce [2024-11-08 22:05:35,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:05:36,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:05:36,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:05:36,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:05:36,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:05:36,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.1.prop1-back-serstep.c Unable to find full path for "g++" [2024-11-08 22:05:38,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:05:38,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:05:38,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.1.prop1-back-serstep.c [2024-11-08 22:05:38,572 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/data/8e0251d84/af3ae77ddc434a1fb89f199948595b2f/FLAGcad3bb2e8 [2024-11-08 22:05:38,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/data/8e0251d84/af3ae77ddc434a1fb89f199948595b2f [2024-11-08 22:05:38,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:05:38,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:05:38,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:38,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:05:38,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:05:38,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:38" (1/1) ... [2024-11-08 22:05:38,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592e8b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:38, skipping insertion in model container [2024-11-08 22:05:38,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:38" (1/1) ... [2024-11-08 22:05:38,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:05:39,082 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_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.1.prop1-back-serstep.c[1177,1190] [2024-11-08 22:05:40,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:40,094 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:05:40,106 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_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.1.prop1-back-serstep.c[1177,1190] [2024-11-08 22:05:40,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:40,703 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:05:40,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40 WrapperNode [2024-11-08 22:05:40,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:40,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:40,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:05:40,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:05:40,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:40,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:42,856 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17522 [2024-11-08 22:05:42,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:42,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:05:42,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:05:42,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:05:42,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:42,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:43,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:43,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:43,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:43,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:44,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:44,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:44,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:05:44,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:05:44,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:05:44,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:05:44,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:40" (1/1) ... [2024-11-08 22:05:44,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:44,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:05:44,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:05:44,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f2d6fc2-e66b-4af6-902c-27fd9210cc00/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:05:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:05:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:05:44,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:05:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:05:46,016 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:05:46,020 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:06:27,630 INFO L? ?]: Removed 9530 outVars from TransFormulas that were not future-live. [2024-11-08 22:06:27,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:07:16,119 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:07:16,119 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:07:16,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:07:16 BoogieIcfgContainer [2024-11-08 22:07:16,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:07:16,121 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:07:16,121 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:07:16,132 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:07:16,133 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:07:16" (1/1) ... [2024-11-08 22:07:16,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:07:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:07:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-11-08 22:07:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-11-08 22:07:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 22:07:16,199 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:07:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:07:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat