./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-060.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/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_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-060.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/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_ba13db59-99be-4f6b-8fe4-03845be341ca/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 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:50:52,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:50:52,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:50:52,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:50:52,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:50:52,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:50:52,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:50:52,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:50:52,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:50:52,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:50:52,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:50:52,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:50:52,370 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:50:52,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:50:52,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:50:52,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:50:52,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:50:52,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:50:52,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:50:52,373 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:50:52,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:50:52,374 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:50:52,375 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:50:52,375 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:50:52,375 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:50:52,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:50:52,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:50:52,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:50:52,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:50:52,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:50:52,378 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:50:52,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:50:52,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:50:52,379 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_ba13db59-99be-4f6b-8fe4-03845be341ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be [2023-11-19 02:50:52,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:50:52,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:50:52,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:50:52,671 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:50:52,673 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:50:52,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/xcsp/Dubois-060.c [2023-11-19 02:50:55,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:50:56,102 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:50:56,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/sv-benchmarks/c/xcsp/Dubois-060.c [2023-11-19 02:50:56,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/data/fa540c255/f28395a8100848248d8698bf6accabde/FLAG08c69a779 [2023-11-19 02:50:56,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/data/fa540c255/f28395a8100848248d8698bf6accabde [2023-11-19 02:50:56,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:50:56,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:50:56,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:50:56,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:50:56,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:50:56,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:56" (1/1) ... [2023-11-19 02:50:56,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a038cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:56, skipping insertion in model container [2023-11-19 02:50:56,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:56" (1/1) ... [2023-11-19 02:50:56,222 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:50:56,730 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_ba13db59-99be-4f6b-8fe4-03845be341ca/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2023-11-19 02:50:56,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:50:56,789 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:50:57,020 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_ba13db59-99be-4f6b-8fe4-03845be341ca/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2023-11-19 02:50:57,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:50:57,055 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:50:57,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57 WrapperNode [2023-11-19 02:50:57,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:50:57,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:50:57,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:50:57,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:50:57,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:57,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:58,232 INFO L138 Inliner]: procedures = 13, calls = 487, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14596 [2023-11-19 02:50:58,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:50:58,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:50:58,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:50:58,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:50:58,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:58,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:58,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:58,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:58,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:58,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:59,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:59,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:59,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:50:59,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:50:59,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:50:59,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:50:59,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:57" (1/1) ... [2023-11-19 02:50:59,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:50:59,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:50:59,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:50:59,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba13db59-99be-4f6b-8fe4-03845be341ca/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:50:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:50:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:50:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:50:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:50:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2023-11-19 02:50:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2023-11-19 02:50:59,950 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:50:59,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:07,829 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:24,948 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:24,949 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:51:24,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:24 BoogieIcfgContainer [2023-11-19 02:51:24,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:24,968 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:24,968 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:24,978 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:24,979 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:24" (1/1) ... [2023-11-19 02:51:24,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 786 states and 1264 transitions. [2023-11-19 02:51:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1264 transitions. [2023-11-19 02:51:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2023-11-19 02:51:25,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:25,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms