./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC --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 fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:17:34,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:17:34,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-23 20:17:34,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:17:34,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:17:34,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:17:34,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:17:34,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:17:34,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:17:34,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:17:34,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:17:34,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:17:34,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:17:34,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:17:34,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:17:34,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:17:34,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:17:34,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:17:34,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:17:34,672 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:17:34,673 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:17:34,674 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:17:34,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:17:34,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:34,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:17:34,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:17:34,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:17:34,676 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:17:34,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:17:34,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:17:34,678 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_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 [2023-11-23 20:17:35,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:17:35,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:17:35,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:17:35,072 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:17:35,072 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:17:35,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2023-11-23 20:17:38,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:17:38,665 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:17:38,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2023-11-23 20:17:38,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data/e28ac7ccc/1e74263b100d4ff683e2a33f5f575b5c/FLAG3df92b342 [2023-11-23 20:17:38,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data/e28ac7ccc/1e74263b100d4ff683e2a33f5f575b5c [2023-11-23 20:17:38,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:17:38,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:17:38,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:38,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:17:38,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:17:38,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:38" (1/1) ... [2023-11-23 20:17:38,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff024e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:38, skipping insertion in model container [2023-11-23 20:17:38,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:38" (1/1) ... [2023-11-23 20:17:38,821 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:17:39,049 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_62e86ba2-071a-4587-bed1-e71dbbb22484/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2023-11-23 20:17:39,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:39,422 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:17:39,431 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_62e86ba2-071a-4587-bed1-e71dbbb22484/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2023-11-23 20:17:39,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:39,724 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:17:39,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39 WrapperNode [2023-11-23 20:17:39,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:39,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:39,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:17:39,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:17:39,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:39,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,313 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4063 [2023-11-23 20:17:40,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:40,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:17:40,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:17:40,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:17:40,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:17:40,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:17:40,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:17:40,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:17:40,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:39" (1/1) ... [2023-11-23 20:17:40,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:17:40,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:17:40,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:17:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:17:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:17:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:17:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:17:41,388 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:17:41,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:17:45,169 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:17:52,681 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:17:52,683 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:17:52,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:52 BoogieIcfgContainer [2023-11-23 20:17:52,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:17:52,686 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:17:52,686 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:17:52,697 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:17:52,697 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:52" (1/1) ... [2023-11-23 20:17:52,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:17:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:52,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-23 20:17:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-23 20:17:52,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:17:52,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:53,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:17:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:54,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:17:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:54,811 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:17:54,849 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 20:17:54,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:17:54 ImpRootNode [2023-11-23 20:17:54,859 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:17:54,860 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:17:54,860 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:17:54,860 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:17:54,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:52" (3/4) ... [2023-11-23 20:17:54,863 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:17:54,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:17:54,866 INFO L158 Benchmark]: Toolchain (without parser) took 16138.87ms. Allocated memory was 144.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 94.9MB in the beginning and 1.0GB in the end (delta: -920.5MB). Peak memory consumption was 287.6MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,866 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 144.7MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:54,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 992.91ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 94.6MB in the beginning and 161.2MB in the end (delta: -66.6MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 587.72ms. Allocated memory is still 207.6MB. Free memory was 160.2MB in the beginning and 115.4MB in the end (delta: 44.8MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,869 INFO L158 Benchmark]: Boogie Preprocessor took 569.47ms. Allocated memory is still 207.6MB. Free memory was 115.4MB in the beginning and 81.1MB in the end (delta: 34.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,869 INFO L158 Benchmark]: RCFGBuilder took 11800.18ms. Allocated memory was 207.6MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 80.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 467.7MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,870 INFO L158 Benchmark]: CodeCheck took 2173.38ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.0GB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,871 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:54,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 127. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_22 = 0; [L40] const SORT_4 var_45 = 1; [L41] const SORT_4 var_46 = 0; [L42] const SORT_2 var_54 = 0; [L43] const SORT_2 var_56 = 1; [L44] const SORT_3 var_66 = 0; [L45] const SORT_4 var_153 = 2; [L46] const SORT_2 var_165 = 2; [L47] const SORT_4 var_167 = 6; [L49] SORT_1 input_53; [L50] SORT_1 input_55; [L51] SORT_1 input_60; [L52] SORT_1 input_61; [L53] SORT_1 input_65; [L54] SORT_1 input_73; [L55] SORT_1 input_80; [L56] SORT_1 input_84; [L57] SORT_1 input_85; [L58] SORT_1 input_97; [L59] SORT_1 input_101; [L60] SORT_1 input_102; [L61] SORT_1 input_121; [L62] SORT_1 input_124; [L63] SORT_1 input_140; [L64] SORT_1 input_143; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L66] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L67] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L68] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L69] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L70] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L71] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L72] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L73] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L74] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L75] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L76] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L77] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L78] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L79] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L80] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L81] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L82] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L83] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L84] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_2 init_7_arg_1 = var_5; [L87] state_6 = init_7_arg_1 [L88] SORT_2 init_9_arg_1 = var_5; [L89] state_8 = init_9_arg_1 [L90] SORT_2 init_11_arg_1 = var_5; [L91] state_10 = init_11_arg_1 [L92] SORT_2 init_13_arg_1 = var_5; [L93] state_12 = init_13_arg_1 [L94] SORT_2 init_15_arg_1 = var_5; [L95] state_14 = init_15_arg_1 [L96] SORT_2 init_17_arg_1 = var_5; [L97] state_16 = init_17_arg_1 [L98] SORT_2 init_19_arg_1 = var_5; [L99] state_18 = init_19_arg_1 [L100] SORT_2 init_21_arg_1 = var_5; [L101] state_20 = init_21_arg_1 [L102] SORT_1 init_24_arg_1 = var_22; [L103] state_23 = init_24_arg_1 [L104] SORT_1 init_26_arg_1 = var_22; [L105] state_25 = init_26_arg_1 [L106] SORT_1 init_28_arg_1 = var_22; [L107] state_27 = init_28_arg_1 [L108] SORT_1 init_30_arg_1 = var_22; [L109] state_29 = init_30_arg_1 [L110] SORT_1 init_32_arg_1 = var_22; [L111] state_31 = init_32_arg_1 [L112] SORT_1 init_34_arg_1 = var_22; [L113] state_33 = init_34_arg_1 [L114] SORT_1 init_36_arg_1 = var_22; [L115] state_35 = init_36_arg_1 [L116] SORT_1 init_38_arg_1 = var_22; [L117] state_37 = init_38_arg_1 [L118] SORT_1 init_40_arg_1 = var_22; [L119] state_39 = init_40_arg_1 [L120] SORT_1 init_42_arg_1 = var_22; [L121] state_41 = init_42_arg_1 [L122] SORT_1 init_44_arg_1 = var_22; [L123] state_43 = init_44_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L126] input_53 = __VERIFIER_nondet_uchar() [L127] EXPR input_53 & mask_SORT_1 [L127] input_53 = input_53 & mask_SORT_1 [L128] input_55 = __VERIFIER_nondet_uchar() [L129] EXPR input_55 & mask_SORT_1 [L129] input_55 = input_55 & mask_SORT_1 [L130] input_60 = __VERIFIER_nondet_uchar() [L131] EXPR input_60 & mask_SORT_1 [L131] input_60 = input_60 & mask_SORT_1 [L132] input_61 = __VERIFIER_nondet_uchar() [L133] EXPR input_61 & mask_SORT_1 [L133] input_61 = input_61 & mask_SORT_1 [L134] input_65 = __VERIFIER_nondet_uchar() [L135] EXPR input_65 & mask_SORT_1 [L135] input_65 = input_65 & mask_SORT_1 [L136] input_73 = __VERIFIER_nondet_uchar() [L137] EXPR input_73 & mask_SORT_1 [L137] input_73 = input_73 & mask_SORT_1 [L138] input_80 = __VERIFIER_nondet_uchar() [L139] EXPR input_80 & mask_SORT_1 [L139] input_80 = input_80 & mask_SORT_1 [L140] input_84 = __VERIFIER_nondet_uchar() [L141] EXPR input_84 & mask_SORT_1 [L141] input_84 = input_84 & mask_SORT_1 [L142] input_85 = __VERIFIER_nondet_uchar() [L143] EXPR input_85 & mask_SORT_1 [L143] input_85 = input_85 & mask_SORT_1 [L144] input_97 = __VERIFIER_nondet_uchar() [L145] EXPR input_97 & mask_SORT_1 [L145] input_97 = input_97 & mask_SORT_1 [L146] input_101 = __VERIFIER_nondet_uchar() [L147] EXPR input_101 & mask_SORT_1 [L147] input_101 = input_101 & mask_SORT_1 [L148] input_102 = __VERIFIER_nondet_uchar() [L149] EXPR input_102 & mask_SORT_1 [L149] input_102 = input_102 & mask_SORT_1 [L150] input_121 = __VERIFIER_nondet_uchar() [L151] input_124 = __VERIFIER_nondet_uchar() [L152] input_140 = __VERIFIER_nondet_uchar() [L153] input_143 = __VERIFIER_nondet_uchar() [L156] SORT_1 var_47_arg_0 = state_31; [L157] SORT_4 var_47_arg_1 = var_45; [L158] SORT_4 var_47_arg_2 = var_46; [L159] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L160] SORT_1 var_48_arg_0 = state_41; [L161] SORT_4 var_48_arg_1 = var_45; [L162] SORT_4 var_48_arg_2 = var_46; [L163] SORT_4 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L164] SORT_4 var_49_arg_0 = var_47; [L165] SORT_4 var_49_arg_1 = var_48; [L166] SORT_4 var_49 = var_49_arg_0 + var_49_arg_1; [L167] EXPR var_49 & mask_SORT_4 [L167] var_49 = var_49 & mask_SORT_4 [L168] SORT_4 var_50_arg_0 = var_49; [L169] SORT_4 var_50_arg_1 = var_45; [L170] SORT_1 var_50 = var_50_arg_0 <= var_50_arg_1; [L171] SORT_1 var_51_arg_0 = ~state_43; [L172] EXPR var_51_arg_0 & mask_SORT_1 [L172] var_51_arg_0 = var_51_arg_0 & mask_SORT_1 [L173] SORT_1 var_51_arg_1 = ~var_50; [L174] EXPR var_51_arg_1 & mask_SORT_1 [L174] var_51_arg_1 = var_51_arg_1 & mask_SORT_1 [L175] EXPR var_51_arg_0 & var_51_arg_1 [L175] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L176] EXPR var_51 & mask_SORT_1 [L176] var_51 = var_51 & mask_SORT_1 [L177] SORT_1 bad_52_arg_0 = var_51; [L178] CALL __VERIFIER_assert(!(bad_52_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 144.7MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 992.91ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 94.6MB in the beginning and 161.2MB in the end (delta: -66.6MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 587.72ms. Allocated memory is still 207.6MB. Free memory was 160.2MB in the beginning and 115.4MB in the end (delta: 44.8MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 569.47ms. Allocated memory is still 207.6MB. Free memory was 115.4MB in the beginning and 81.1MB in the end (delta: 34.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * RCFGBuilder took 11800.18ms. Allocated memory was 207.6MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 80.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 467.7MB. Max. memory is 16.1GB. * CodeCheck took 2173.38ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.0GB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:17:54,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC --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 fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:17:57,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:17:57,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-23 20:17:57,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:17:57,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:17:57,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:17:57,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:17:57,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:17:57,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:17:57,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:17:57,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:17:57,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:17:57,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:17:57,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:17:57,801 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:17:57,802 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:17:57,802 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:17:57,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:17:57,803 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:17:57,804 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:17:57,805 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:17:57,805 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:17:57,806 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:17:57,806 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:17:57,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:17:57,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:57,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:17:57,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:17:57,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:17:57,809 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:17:57,810 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:17:57,810 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:17:57,810 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:17:57,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:17:57,811 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 [2023-11-23 20:17:58,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:17:58,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:17:58,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:17:58,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:17:58,210 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:17:58,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2023-11-23 20:18:01,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:18:01,730 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:18:01,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2023-11-23 20:18:01,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data/16bdcfb50/d16711bbf09242f5ac024fc807b809dc/FLAG9e04df5ea [2023-11-23 20:18:01,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/data/16bdcfb50/d16711bbf09242f5ac024fc807b809dc [2023-11-23 20:18:01,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:18:01,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:18:01,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:18:01,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:18:01,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:18:01,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:18:01" (1/1) ... [2023-11-23 20:18:01,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1394c5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:01, skipping insertion in model container [2023-11-23 20:18:01,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:18:01" (1/1) ... [2023-11-23 20:18:01,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:18:02,047 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_62e86ba2-071a-4587-bed1-e71dbbb22484/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2023-11-23 20:18:02,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:18:02,401 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:18:02,415 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_62e86ba2-071a-4587-bed1-e71dbbb22484/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2023-11-23 20:18:02,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:18:02,550 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:18:02,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02 WrapperNode [2023-11-23 20:18:02,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:18:02,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:18:02,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:18:02,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:18:02,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,724 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1096 [2023-11-23 20:18:02,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:18:02,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:18:02,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:18:02,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:18:02,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:18:02,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:18:02,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:18:02,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:18:02,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:02" (1/1) ... [2023-11-23 20:18:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:18:02,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:18:02,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:18:02,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:18:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:18:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:18:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:18:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:18:03,215 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:18:03,217 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:18:05,027 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:18:05,129 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:18:05,129 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:18:05,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:05 BoogieIcfgContainer [2023-11-23 20:18:05,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:18:05,132 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:18:05,132 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:18:05,142 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:18:05,142 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:05" (1/1) ... [2023-11-23 20:18:05,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:18:05,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-23 20:18:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-23 20:18:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:18:05,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:05,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:18:05,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:18:05,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:18:05,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:18:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:05,685 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:18:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:05,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 20:18:05,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:18:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:18:06,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:18:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-23 20:18:06,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-23 20:18:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:18:06,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:06,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:18:06,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:18:06,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:18:06,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:18:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:07,576 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:18:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:07,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 91 conjunts are in the unsatisfiable core [2023-11-23 20:18:07,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:18:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:18:09,770 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:18:09,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:18:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2023-11-23 20:18:13,078 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2023-11-23 20:18:13,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:18:13,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:13,080 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:18:13,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:18:13,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:18:13,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e86ba2-071a-4587-bed1-e71dbbb22484/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:18:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:14,377 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:18:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:15,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 211 conjunts are in the unsatisfiable core [2023-11-23 20:18:15,034 INFO L285 TraceCheckSpWp]: Computing forward predicates...