./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi --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 32bit --witnessprinter.graph.data.programhash 736ab1a5e950f94d10703cde0979d12465a57eb1332dc067f0dbd06f88e9370a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:20,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:20,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:03:21,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:03:21,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:03:21,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:21,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:21,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:21,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:21,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:21,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:21,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:21,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:03:21,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:03:21,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:03:21,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:21,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:21,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:21,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:21,043 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:03:21,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:21,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:21,049 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:21,050 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:21,050 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:21,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:21,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:21,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:21,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:21,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:21,054 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:03:21,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:03:21,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:21,055 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 736ab1a5e950f94d10703cde0979d12465a57eb1332dc067f0dbd06f88e9370a [2023-11-24 23:03:21,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:21,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:21,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:21,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:21,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:21,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c [2023-11-24 23:03:24,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:03:24,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:03:24,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c [2023-11-24 23:03:24,815 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data/79cd96a00/7f8f06db12cb42f8881d1717b25c4948/FLAG6f03d30ad [2023-11-24 23:03:24,831 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data/79cd96a00/7f8f06db12cb42f8881d1717b25c4948 [2023-11-24 23:03:24,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:03:24,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:03:24,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:24,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:03:24,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:03:24,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:24" (1/1) ... [2023-11-24 23:03:24,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bf3022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:24, skipping insertion in model container [2023-11-24 23:03:24,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:24" (1/1) ... [2023-11-24 23:03:24,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:03:25,047 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c[831,844] [2023-11-24 23:03:25,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:25,098 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:03:25,114 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c[831,844] [2023-11-24 23:03:25,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:25,155 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:03:25,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25 WrapperNode [2023-11-24 23:03:25,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:25,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:25,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:03:25,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:03:25,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,204 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-11-24 23:03:25,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:25,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:03:25,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:03:25,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:03:25,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:03:25,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:03:25,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:03:25,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:03:25,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:25,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:03:25,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:03:25,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:03:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:03:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:03:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:03:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:03:25,475 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:03:25,478 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:03:25,615 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:03:25,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:03:25,676 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:03:25,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:25 BoogieIcfgContainer [2023-11-24 23:03:25,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:03:25,679 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:03:25,679 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:03:25,690 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:03:25,690 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:25" (1/1) ... [2023-11-24 23:03:25,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:03:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:25,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-24 23:03:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-24 23:03:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:03:25,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:25,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:03:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:26,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:03:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:26,052 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:03:26,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:03:26 ImpRootNode [2023-11-24 23:03:26,083 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:03:26,085 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:03:26,086 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:03:26,086 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:03:26,087 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:25" (3/4) ... [2023-11-24 23:03:26,092 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:03:26,094 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:03:26,096 INFO L158 Benchmark]: Toolchain (without parser) took 1259.43ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 85.0MB in the end (delta: 14.7MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-24 23:03:26,096 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:03:26,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.45ms. Allocated memory is still 138.4MB. Free memory was 99.2MB in the beginning and 88.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:03:26,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.16ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:26,100 INFO L158 Benchmark]: Boogie Preprocessor took 109.68ms. Allocated memory is still 138.4MB. Free memory was 86.6MB in the beginning and 110.3MB in the end (delta: -23.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:26,101 INFO L158 Benchmark]: RCFGBuilder took 362.91ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 98.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:03:26,102 INFO L158 Benchmark]: CodeCheck took 404.19ms. Allocated memory is still 138.4MB. Free memory was 98.3MB in the beginning and 85.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:03:26,103 INFO L158 Benchmark]: Witness Printer took 8.59ms. Allocated memory is still 138.4MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:03:26,113 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, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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: 20]: 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 someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of someUnaryDOUBLEoperation at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 55. Possible FailurePath: [L22] double _EPS = 1e-6; [L49] double d, r; [L51] d = 1. VAL [_EPS=1/1000000, d=1] [L51] COND TRUE d <= 20. [L53] CALL, EXPR SqrtR(d) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; [L28] COND FALSE !(Input <= 1.0) [L28] xn = 1.0/Input [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 VAL [Input=1, \old(Input)=1, _EPS=1/1000000, cond=0, i=0, xn=1, xn=1] [L35] COND FALSE !(\read(cond)) [L44] return 1.0 / xnp1; [L53] RET, EXPR SqrtR(d) [L53] r = SqrtR(d) [L55] CALL __VERIFIER_assert(r >= 1.0 && r <= 5.0) [L20] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L20] reach_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.45ms. Allocated memory is still 138.4MB. Free memory was 99.2MB in the beginning and 88.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.16ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.68ms. Allocated memory is still 138.4MB. Free memory was 86.6MB in the beginning and 110.3MB in the end (delta: -23.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.91ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 98.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 404.19ms. Allocated memory is still 138.4MB. Free memory was 98.3MB in the beginning and 85.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 8.59ms. Allocated memory is still 138.4MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:03:26,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi --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 32bit --witnessprinter.graph.data.programhash 736ab1a5e950f94d10703cde0979d12465a57eb1332dc067f0dbd06f88e9370a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:28,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:29,119 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:03:29,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:29,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:29,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:29,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:29,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:29,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:29,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:29,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:03:29,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:03:29,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:29,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:29,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:29,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:29,184 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:03:29,184 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:03:29,185 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:03:29,186 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:03:29,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:29,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:29,187 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:29,188 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:29,188 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:29,188 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:03:29,189 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:03:29,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:29,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:29,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:29,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:29,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:29,192 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:03:29,193 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:03:29,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:29,193 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:03:29,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:03:29,194 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 736ab1a5e950f94d10703cde0979d12465a57eb1332dc067f0dbd06f88e9370a [2023-11-24 23:03:29,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:29,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:29,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:29,680 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:29,681 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:29,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c [2023-11-24 23:03:32,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:03:33,160 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:03:33,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c [2023-11-24 23:03:33,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data/04fb26ae5/4b220c8049e14a5d9968d9681b8fd2f9/FLAG738f647b1 [2023-11-24 23:03:33,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/data/04fb26ae5/4b220c8049e14a5d9968d9681b8fd2f9 [2023-11-24 23:03:33,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:03:33,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:03:33,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:33,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:03:33,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:03:33,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2d427a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33, skipping insertion in model container [2023-11-24 23:03:33,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:03:33,415 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c[831,844] [2023-11-24 23:03:33,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:33,481 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:03:33,496 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_1ae19b6b-4157-4c1d-a915-9c33c917db4e/sv-benchmarks/c/float-benchs/sqrt_Householder_constant.c[831,844] [2023-11-24 23:03:33,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:33,546 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:03:33,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33 WrapperNode [2023-11-24 23:03:33,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:33,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:33,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:03:33,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:03:33,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,612 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-11-24 23:03:33,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:33,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:03:33,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:03:33,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:03:33,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:03:33,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:03:33,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:03:33,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:03:33,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:33,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:03:33,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:03:33,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:03:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:03:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:03:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:03:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:03:33,874 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:03:33,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:04:10,745 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:04:10,793 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:04:10,793 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:04:10,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:04:10 BoogieIcfgContainer [2023-11-24 23:04:10,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:04:10,796 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:04:10,797 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:04:10,807 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:04:10,807 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:04:10" (1/1) ... [2023-11-24 23:04:10,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:04:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:04:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-24 23:04:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-24 23:04:10,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:04:10,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:04:10,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:04:10,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:04:10,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:04:10,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:04:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:04:13,660 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:04:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:04:26,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 23:04:26,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:04:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:04:27,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae19b6b-4157-4c1d-a915-9c33c917db4e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0