./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/ludcmp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/ludcmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL --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 45bf8892eb23096ca55c36a274511a87f80900e96066e62793920cbba0252ec0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:57,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:57,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:00:57,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:57,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:57,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:57,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:57,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:57,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:57,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:57,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:57,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:57,217 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:57,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:57,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:57,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:57,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:57,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:57,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:57,222 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:57,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:57,223 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:57,224 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:57,224 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:57,224 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:57,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:57,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:57,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:57,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:57,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:57,227 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:57,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:57,228 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:57,228 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45bf8892eb23096ca55c36a274511a87f80900e96066e62793920cbba0252ec0 [2023-11-19 04:00:57,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:57,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:57,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:57,520 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:57,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:57,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loops/ludcmp.c [2023-11-19 04:01:00,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:01:00,860 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:01:00,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/sv-benchmarks/c/loops/ludcmp.c [2023-11-19 04:01:00,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data/8d6d940fb/ce4e318130ed4a1f824a29e84942c60b/FLAG900f5e38a [2023-11-19 04:01:00,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data/8d6d940fb/ce4e318130ed4a1f824a29e84942c60b [2023-11-19 04:01:00,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:01:00,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:01:00,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:01:00,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:01:00,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:01:00,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:01:00" (1/1) ... [2023-11-19 04:01:00,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@83473f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:00, skipping insertion in model container [2023-11-19 04:01:00,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:01:00" (1/1) ... [2023-11-19 04:01:00,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:01:01,138 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/sv-benchmarks/c/loops/ludcmp.c[318,331] [2023-11-19 04:01:01,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:01:01,193 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:01:01,204 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/sv-benchmarks/c/loops/ludcmp.c[318,331] [2023-11-19 04:01:01,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:01:01,247 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:01:01,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01 WrapperNode [2023-11-19 04:01:01,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:01:01,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:01:01,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:01:01,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:01:01,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,303 INFO L138 Inliner]: procedures = 17, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 223 [2023-11-19 04:01:01,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:01:01,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:01:01,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:01:01,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:01:01,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:01:01,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:01:01,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:01:01,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:01:01,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:01" (1/1) ... [2023-11-19 04:01:01,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:01:01,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:01:01,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:01:01,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:01:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:01:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:01:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:01:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:01:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:01:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:01:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:01:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:01:01,521 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:01:01,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:01:01,897 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:01:02,038 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:01:02,038 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-19 04:01:02,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:02 BoogieIcfgContainer [2023-11-19 04:01:02,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:01:02,044 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:01:02,044 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:01:02,055 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:01:02,055 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:02" (1/1) ... [2023-11-19 04:01:02,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:01:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2023-11-19 04:01:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2023-11-19 04:01:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:01:02,132 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:02,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2023-11-19 04:01:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2023-11-19 04:01:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:01:02,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 43 transitions. [2023-11-19 04:01:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 43 transitions. [2023-11-19 04:01:02,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:01:02,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:02,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2023-11-19 04:01:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2023-11-19 04:01:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:01:02,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 47 transitions. [2023-11-19 04:01:03,208 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 47 transitions. [2023-11-19 04:01:03,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:01:03,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:03,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:03,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 28 states and 49 transitions. [2023-11-19 04:01:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 49 transitions. [2023-11-19 04:01:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:01:03,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:03,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2023-11-19 04:01:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2023-11-19 04:01:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:01:03,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:03,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:01:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:01:03,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:01:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:01:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:01:04,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:01:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:01:04,311 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2023-11-19 04:01:04,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 04:01:04,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 04:01:04,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 04:01:04,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 04:01:04,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 04:01:04,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 04:01:04,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:01:04 ImpRootNode [2023-11-19 04:01:04,368 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:01:04,368 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:01:04,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:01:04,369 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:01:04,370 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:02" (3/4) ... [2023-11-19 04:01:04,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:01:04,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:01:04,377 INFO L158 Benchmark]: Toolchain (without parser) took 3475.11ms. Allocated memory is still 180.4MB. Free memory was 133.8MB in the beginning and 112.4MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:01:04,377 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:01:04,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.74ms. Allocated memory is still 180.4MB. Free memory was 133.8MB in the beginning and 121.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:01:04,380 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.79ms. Allocated memory is still 180.4MB. Free memory was 121.3MB in the beginning and 118.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:01:04,381 INFO L158 Benchmark]: Boogie Preprocessor took 43.76ms. Allocated memory is still 180.4MB. Free memory was 118.5MB in the beginning and 117.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:01:04,387 INFO L158 Benchmark]: RCFGBuilder took 694.02ms. Allocated memory is still 180.4MB. Free memory was 116.4MB in the beginning and 91.9MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:01:04,388 INFO L158 Benchmark]: CodeCheck took 2323.72ms. Allocated memory is still 180.4MB. Free memory was 91.9MB in the beginning and 113.5MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:01:04,389 INFO L158 Benchmark]: Witness Printer took 7.55ms. Allocated memory is still 180.4MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:01:04,397 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 177 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 18 mSDtfsCounter, 177 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 339 SyntacticMatches, 20 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/35 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: 7]: 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 to_real at line 98, overapproximation of someBinaryArithmeticDOUBLEoperation at line 99. Possible FailurePath: [L71] double a[50][50], b[50], x[50]; [L88] int i, j, nmax = 50, n = 5, chkerr; [L89] double eps, w; [L91] eps = 1.0e-6 [L93] i = 0 VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, n=5, nmax=50, x={6:0}] [L93] COND TRUE i <= n [L95] w = 0.0 [L96] j = 0 VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=0, n=5, nmax=50, w=0, x={6:0}] [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND TRUE i == j [L99] EXPR a[i][j] [L99] a[i][j] *= 10.0 [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=1, n=5, nmax=50, x={6:0}] [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=2, n=5, nmax=50, x={6:0}] [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=3, n=5, nmax=50, x={6:0}] [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=4, n=5, nmax=50, x={6:0}] [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=5, n=5, nmax=50, x={6:0}] [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ VAL [a={4:0}, b={5:0}, eps=1/1000000, i=0, j=6, n=5, nmax=50, x={6:0}] [L96] COND FALSE !(j <= n) [L102] CALL __VERIFIER_assert(i==2) [L6] COND TRUE !(cond) VAL [\old(cond)=0, a={4:0}, b={5:0}, cond=0, x={6:0}] [L7] reach_error() VAL [\old(cond)=0, a={4:0}, b={5:0}, cond=0, x={6:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.74ms. Allocated memory is still 180.4MB. Free memory was 133.8MB in the beginning and 121.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.79ms. Allocated memory is still 180.4MB. Free memory was 121.3MB in the beginning and 118.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.76ms. Allocated memory is still 180.4MB. Free memory was 118.5MB in the beginning and 117.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.02ms. Allocated memory is still 180.4MB. Free memory was 116.4MB in the beginning and 91.9MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 2323.72ms. Allocated memory is still 180.4MB. Free memory was 91.9MB in the beginning and 113.5MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.55ms. Allocated memory is still 180.4MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:01:04,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/ludcmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL --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 45bf8892eb23096ca55c36a274511a87f80900e96066e62793920cbba0252ec0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:01:07,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:01:07,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 04:01:07,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:01:07,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:01:07,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:01:07,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:01:07,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:01:07,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:01:07,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:01:07,306 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:01:07,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:01:07,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:01:07,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:01:07,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:01:07,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:01:07,310 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:01:07,311 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:01:07,311 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:01:07,312 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:01:07,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:01:07,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:01:07,313 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:01:07,314 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:01:07,314 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:01:07,314 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:01:07,315 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:01:07,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:01:07,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:01:07,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:01:07,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:01:07,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:01:07,318 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:01:07,318 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:01:07,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:01:07,319 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:01:07,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:01:07,319 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45bf8892eb23096ca55c36a274511a87f80900e96066e62793920cbba0252ec0 [2023-11-19 04:01:07,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:01:07,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:01:07,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:01:07,779 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:01:07,779 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:01:07,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loops/ludcmp.c [2023-11-19 04:01:10,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:01:11,205 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:01:11,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/sv-benchmarks/c/loops/ludcmp.c [2023-11-19 04:01:11,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data/9eb670330/2dd8d9a357be4b248ad4711ded2ab80a/FLAGb616ef0b7 [2023-11-19 04:01:11,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/data/9eb670330/2dd8d9a357be4b248ad4711ded2ab80a [2023-11-19 04:01:11,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:01:11,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:01:11,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:01:11,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:01:11,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:01:11,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6121f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11, skipping insertion in model container [2023-11-19 04:01:11,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:01:11,531 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/sv-benchmarks/c/loops/ludcmp.c[318,331] [2023-11-19 04:01:11,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:01:11,611 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:01:11,632 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_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/sv-benchmarks/c/loops/ludcmp.c[318,331] [2023-11-19 04:01:11,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:01:11,744 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:01:11,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11 WrapperNode [2023-11-19 04:01:11,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:01:11,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:01:11,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:01:11,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:01:11,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,855 INFO L138 Inliner]: procedures = 18, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 223 [2023-11-19 04:01:11,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:01:11,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:01:11,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:01:11,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:01:11,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:01:11,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:01:11,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:01:11,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:01:11,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:01:11" (1/1) ... [2023-11-19 04:01:11,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:01:11,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:01:12,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:01:12,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:01:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:01:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-19 04:01:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-19 04:01:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:01:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:01:12,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:01:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:01:12,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:01:12,165 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:01:12,168 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:01:58,463 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:01:58,604 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:01:58,604 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-19 04:01:58,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:58 BoogieIcfgContainer [2023-11-19 04:01:58,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:01:58,612 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:01:58,612 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:01:58,623 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:01:58,623 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:01:58" (1/1) ... [2023-11-19 04:01:58,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:01:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:01:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2023-11-19 04:01:58,702 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2023-11-19 04:01:58,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:01:58,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:01:58,705 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:01:58,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:01:58,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:01:58,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:01:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:58,890 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:01:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:01:58,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:01:58,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:01:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:01:59,132 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:01:59,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8519b82e-bd30-41e9-af0e-7b3e14ced3d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:02:00,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:02:02,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:02:04,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []