./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2 --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 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:29:40,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:29:40,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-21 18:29:40,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:29:40,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:29:40,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:29:40,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:29:40,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:29:40,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:29:40,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:29:40,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:29:40,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:29:40,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:29:40,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:29:40,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:29:40,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:29:40,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:29:40,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:29:40,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:29:40,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:29:40,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:29:40,741 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:29:40,742 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:29:40,742 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:29:40,743 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:29:40,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:29:40,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:29:40,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:29:40,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:29:40,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:29:40,747 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:29:40,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:29:40,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:29:40,748 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_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 [2023-11-21 18:29:41,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:29:41,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:29:41,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:29:41,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:29:41,143 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:29:41,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2023-11-21 18:29:44,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:29:44,815 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:29:44,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2023-11-21 18:29:44,830 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data/da01743e9/fc158c35085a41ae9ca1687f6360e02c/FLAG39717af25 [2023-11-21 18:29:44,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data/da01743e9/fc158c35085a41ae9ca1687f6360e02c [2023-11-21 18:29:44,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:29:44,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:29:44,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:29:44,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:29:44,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:29:44,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:29:44" (1/1) ... [2023-11-21 18:29:44,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35422206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:44, skipping insertion in model container [2023-11-21 18:29:44,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:29:44" (1/1) ... [2023-11-21 18:29:44,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:29:45,131 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_f90223a8-7f2d-4ef3-a237-855e4295a9bc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i[914,927] [2023-11-21 18:29:45,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:29:45,180 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:29:45,193 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_f90223a8-7f2d-4ef3-a237-855e4295a9bc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i[914,927] [2023-11-21 18:29:45,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:29:45,231 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:29:45,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45 WrapperNode [2023-11-21 18:29:45,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:29:45,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:29:45,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:29:45,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:29:45,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,278 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-11-21 18:29:45,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:29:45,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:29:45,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:29:45,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:29:45,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:29:45,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:29:45,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:29:45,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:29:45,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:29:45,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:29:45,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:29:45,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:29:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:29:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:29:45,419 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:29:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:29:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:29:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:29:45,496 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:29:45,498 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:29:45,756 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:29:45,918 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:29:45,918 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:29:45,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:45 BoogieIcfgContainer [2023-11-21 18:29:45,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:29:45,921 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:29:45,921 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:29:45,933 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:29:45,933 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:45" (1/1) ... [2023-11-21 18:29:45,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:29:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2023-11-21 18:29:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-11-21 18:29:46,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 18:29:46,022 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:29:46,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:29:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:29:46,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:29:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:29:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:29:46,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:29:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:29:46,727 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:29:46,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:29:46 ImpRootNode [2023-11-21 18:29:46,771 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:29:46,771 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:29:46,772 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:29:46,772 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:29:46,773 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:45" (3/4) ... [2023-11-21 18:29:46,775 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:29:46,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:29:46,777 INFO L158 Benchmark]: Toolchain (without parser) took 1916.35ms. Allocated memory is still 161.5MB. Free memory was 131.5MB in the beginning and 106.2MB in the end (delta: 25.3MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-21 18:29:46,778 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:29:46,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.26ms. Allocated memory is still 161.5MB. Free memory was 131.3MB in the beginning and 120.7MB in the end (delta: 10.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-21 18:29:46,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.47ms. Allocated memory is still 161.5MB. Free memory was 120.7MB in the beginning and 119.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:29:46,780 INFO L158 Benchmark]: Boogie Preprocessor took 55.44ms. Allocated memory is still 161.5MB. Free memory was 119.3MB in the beginning and 117.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:29:46,780 INFO L158 Benchmark]: RCFGBuilder took 585.26ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 94.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 18:29:46,781 INFO L158 Benchmark]: CodeCheck took 849.79ms. Allocated memory is still 161.5MB. Free memory was 94.9MB in the beginning and 106.2MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:29:46,781 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 161.5MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:29:46,785 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 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 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: 19]: 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 someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of someBinaryArithmeticFLOAToperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 8.125; [L29] float var_1_8 = 0.4; [L30] float var_1_9 = 499.4; [L31] float var_1_10 = 63.16; [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L65] var_1_3 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L67] var_1_4 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L72] var_1_8 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=4, var_1_9=2497/5] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=4, var_1_9=2497/5] [L74] var_1_9 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=4, var_1_9=5] [L76] var_1_10 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=4, var_1_9=5] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=6, var_1_1=129/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=4, var_1_9=5] [L90] RET updateVariables() [L91] CALL step() [L35] COND FALSE !(! var_1_2) [L38] var_1_1 = ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3))) [L40] unsigned char stepLocal_0 = var_1_4 < var_1_3; [L41] COND TRUE stepLocal_0 || var_1_2 [L42] COND TRUE \read(var_1_2) [L43] COND TRUE \read(var_1_6) [L44] var_1_5 = var_1_3 [L48] unsigned char stepLocal_1 = var_1_1 <= (var_1_1 + var_1_3); [L49] COND TRUE var_1_2 || stepLocal_1 [L50] var_1_7 = ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))) [L91] RET step() [L92] CALL, EXPR property() [L82-L83] return (((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_4 < var_1_3) || var_1_2) ? (var_1_2 ? (var_1_6 ? (var_1_5 == ((double) var_1_3)) : 1) : 1) : 1)) && ((var_1_2 || (var_1_1 <= (var_1_1 + var_1_3))) ? (var_1_7 == ((float) ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))))) : (var_1_6 ? (var_1_7 == ((float) ((var_1_8 - var_1_9) + var_1_10))) : (var_1_2 ? (var_1_7 == ((float) var_1_9)) : 1))) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_1=81/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=2, var_1_6=1, var_1_7=11/2, var_1_8=4, var_1_9=5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_1=81/5, var_1_2=1, var_1_3=2, var_1_4=3, var_1_5=2, var_1_6=1, var_1_7=11/2, var_1_8=4, var_1_9=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.26ms. Allocated memory is still 161.5MB. Free memory was 131.3MB in the beginning and 120.7MB in the end (delta: 10.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.47ms. Allocated memory is still 161.5MB. Free memory was 120.7MB in the beginning and 119.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.44ms. Allocated memory is still 161.5MB. Free memory was 119.3MB in the beginning and 117.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 585.26ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 94.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 849.79ms. Allocated memory is still 161.5MB. Free memory was 94.9MB in the beginning and 106.2MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 161.5MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:29:46,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2 --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 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:29:49,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:29:49,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-21 18:29:49,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:29:49,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:29:49,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:29:49,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:29:49,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:29:49,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:29:49,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:29:49,644 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:29:49,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:29:49,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:29:49,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:29:49,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:29:49,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:29:49,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:29:49,648 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:29:49,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:29:49,650 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:29:49,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:29:49,651 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:29:49,651 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:29:49,652 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:29:49,652 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:29:49,653 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:29:49,653 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:29:49,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:29:49,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:29:49,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:29:49,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:29:49,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:29:49,656 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:29:49,657 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:29:49,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:29:49,657 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:29:49,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:29:49,658 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_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318f2e3ad64ca294baf1dde289a55f9fb4912d80a16ec862d0adf52a5caea970 [2023-11-21 18:29:50,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:29:50,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:29:50,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:29:50,124 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:29:50,125 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:29:50,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2023-11-21 18:29:53,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:29:53,591 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:29:53,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i [2023-11-21 18:29:53,601 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data/40361e89d/d0c2061e9fde414dbefdaf390175290b/FLAG2be21895b [2023-11-21 18:29:53,616 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/data/40361e89d/d0c2061e9fde414dbefdaf390175290b [2023-11-21 18:29:53,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:29:53,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:29:53,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:29:53,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:29:53,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:29:53,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:29:53" (1/1) ... [2023-11-21 18:29:53,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e682238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:53, skipping insertion in model container [2023-11-21 18:29:53,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:29:53" (1/1) ... [2023-11-21 18:29:53,656 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:29:53,862 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_f90223a8-7f2d-4ef3-a237-855e4295a9bc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i[914,927] [2023-11-21 18:29:53,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:29:53,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:29:53,960 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_f90223a8-7f2d-4ef3-a237-855e4295a9bc/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-0.i[914,927] [2023-11-21 18:29:53,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:29:54,025 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:29:54,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54 WrapperNode [2023-11-21 18:29:54,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:29:54,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:29:54,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:29:54,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:29:54,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,122 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-11-21 18:29:54,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:29:54,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:29:54,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:29:54,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:29:54,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:29:54,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:29:54,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:29:54,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:29:54,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:29:54,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:29:54,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:29:54,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:29:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:29:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:29:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:29:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:29:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:29:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:29:54,444 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:29:54,446 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:29:58,264 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:29:58,420 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:29:58,421 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:29:58,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:58 BoogieIcfgContainer [2023-11-21 18:29:58,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:29:58,424 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:29:58,424 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:29:58,436 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:29:58,437 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:58" (1/1) ... [2023-11-21 18:29:58,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:29:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2023-11-21 18:29:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-11-21 18:29:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 18:29:58,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:29:58,523 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:29:58,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:29:58,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:29:58,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f90223a8-7f2d-4ef3-a237-855e4295a9bc/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:30:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:00,846 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:30:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:10,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-21 18:30:10,524 INFO L285 TraceCheckSpWp]: Computing forward predicates...