./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm --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 3e97a263844c27cfbc90b2c6c29bfa9cf44094c2b077d629188394726afbad7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:18:48,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:18:48,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-13 22:18:48,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:18:48,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:18:48,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:18:48,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:18:48,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:18:48,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:18:48,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:18:48,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:18:48,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:18:48,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:18:48,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:18:48,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:18:48,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:18:48,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:18:48,686 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:18:48,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:18:48,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:18:48,687 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:18:48,688 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:18:48,688 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:18:48,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:18:48,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:18:48,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:18:48,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:18:48,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:18:48,689 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:18:48,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:18:48,690 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_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm 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 -> 3e97a263844c27cfbc90b2c6c29bfa9cf44094c2b077d629188394726afbad7a [2024-11-13 22:18:49,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:18:49,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:18:49,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:18:49,093 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:18:49,094 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:18:49,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-back-serstep.c Unable to find full path for "g++" [2024-11-13 22:18:51,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:18:51,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:18:51,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-back-serstep.c [2024-11-13 22:18:51,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/data/a964aaa41/981674428d5c430c9070709aee72757b/FLAGf3b57184f [2024-11-13 22:18:52,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/data/a964aaa41/981674428d5c430c9070709aee72757b [2024-11-13 22:18:52,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:18:52,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:18:52,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:18:52,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:18:52,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:18:52,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:18:52" (1/1) ... [2024-11-13 22:18:52,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dacaf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:52, skipping insertion in model container [2024-11-13 22:18:52,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:18:52" (1/1) ... [2024-11-13 22:18:52,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:18:52,863 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_b96107fc-6254-45d1-b414-4187c5101923/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-back-serstep.c[1175,1188] [2024-11-13 22:18:53,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:18:53,962 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:18:53,979 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_b96107fc-6254-45d1-b414-4187c5101923/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-back-serstep.c[1175,1188] [2024-11-13 22:18:54,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:18:54,716 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:18:54,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54 WrapperNode [2024-11-13 22:18:54,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:18:54,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:18:54,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:18:54,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:18:54,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:54,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:57,151 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21657 [2024-11-13 22:18:57,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:18:57,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:18:57,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:18:57,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:18:57,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:57,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:57,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:57,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:58,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:58,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:59,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:59,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:59,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:18:59,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:18:59,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:18:59,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:18:59,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:18:54" (1/1) ... [2024-11-13 22:18:59,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:18:59,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:18:59,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:18:59,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96107fc-6254-45d1-b414-4187c5101923/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:18:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:18:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:18:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:18:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:19:01,492 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:19:01,494 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:20:18,723 INFO L? ?]: Removed 11503 outVars from TransFormulas that were not future-live. [2024-11-13 22:20:18,724 INFO L287 CfgBuilder]: Performing block encoding