./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.plc.2.prop2-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/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_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.plc.2.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/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_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/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 0f4f965f7f1a11e86f0dadde319c7414867ab895a2a7e00ddaa90cb8b45f53af --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:06:09,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:06:09,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-12 00:06:09,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:06:09,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:06:09,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:06:09,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:06:09,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:06:09,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:06:09,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:06:09,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:06:09,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:06:09,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:06:09,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:06:09,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:06:09,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:06:09,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:06:09,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:06:09,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:06:09,197 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:06:09,198 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:06:09,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:06:09,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:06:09,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:06:09,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:06:09,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:06:09,202 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:06:09,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:06:09,203 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:06:09,204 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_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4f965f7f1a11e86f0dadde319c7414867ab895a2a7e00ddaa90cb8b45f53af [2023-11-12 00:06:09,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:06:09,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:06:09,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:06:09,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:06:09,562 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:06:09,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.plc.2.prop2-back-serstep.c [2023-11-12 00:06:12,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:06:13,698 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:06:13,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.plc.2.prop2-back-serstep.c [2023-11-12 00:06:13,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/data/d1498fbc3/f02ce62d86454508a80eddca7f962f8f/FLAG7acba3035 [2023-11-12 00:06:13,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/data/d1498fbc3/f02ce62d86454508a80eddca7f962f8f [2023-11-12 00:06:13,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:06:13,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:06:13,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:06:13,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:06:13,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:06:13,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:06:13" (1/1) ... [2023-11-12 00:06:13,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c4974e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:13, skipping insertion in model container [2023-11-12 00:06:13,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:06:13" (1/1) ... [2023-11-12 00:06:14,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:06:14,651 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_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.plc.2.prop2-back-serstep.c[1171,1184] [2023-11-12 00:06:16,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:06:16,966 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:06:16,979 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_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.plc.2.prop2-back-serstep.c[1171,1184] [2023-11-12 00:06:19,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:06:19,062 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:06:19,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19 WrapperNode [2023-11-12 00:06:19,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:06:19,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:06:19,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:06:19,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:06:19,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:19,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:27,709 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73674 [2023-11-12 00:06:27,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:06:27,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:06:27,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:06:27,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:06:27,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:27,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:29,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:29,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:31,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:32,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:33,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:33,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:34,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:06:34,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:06:34,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:06:34,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:06:34,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:19" (1/1) ... [2023-11-12 00:06:34,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:06:34,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:06:35,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:06:35,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5368316-9cfe-47dc-9b5a-dbd657e21ad2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:06:35,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:06:35,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:06:35,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:06:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:06:38,090 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:06:38,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation