./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_2_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk --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 8060cb1ce07e11abaa182acb01dfa4175ca7fb1d00421c40b0d3868d7fbf682f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:46:30,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:46:30,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:46:30,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:46:30,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:46:30,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:46:30,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:46:30,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:46:30,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:46:30,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:46:30,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:46:30,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:46:30,270 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:46:30,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:46:30,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:46:30,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:46:30,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:46:30,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:46:30,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:46:30,277 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:46:30,277 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:46:30,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:46:30,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:46:30,279 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:46:30,280 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:46:30,280 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:46:30,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:46:30,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:46:30,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:46:30,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:46:30,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:46:30,283 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:46:30,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:46:30,284 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_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8060cb1ce07e11abaa182acb01dfa4175ca7fb1d00421c40b0d3868d7fbf682f [2024-11-08 23:46:30,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:46:30,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:46:30,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:46:30,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:46:30,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:46:30,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_1+newton_2_6.i Unable to find full path for "g++" [2024-11-08 23:46:33,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:46:33,493 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:46:33,494 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i [2024-11-08 23:46:33,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data/47dcbd8ef/9638b339f9a64cdeb6a2d70b8ca98344/FLAG0fbf35503 [2024-11-08 23:46:33,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data/47dcbd8ef/9638b339f9a64cdeb6a2d70b8ca98344 [2024-11-08 23:46:33,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:46:33,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:46:33,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:46:33,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:46:33,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:46:33,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:46:33" (1/1) ... [2024-11-08 23:46:33,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d6a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:33, skipping insertion in model container [2024-11-08 23:46:33,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:46:33" (1/1) ... [2024-11-08 23:46:33,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:46:34,138 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[1226,1239] [2024-11-08 23:46:34,169 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[2807,2820] [2024-11-08 23:46:34,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:46:34,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:46:34,200 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[1226,1239] [2024-11-08 23:46:34,214 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[2807,2820] [2024-11-08 23:46:34,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:46:34,237 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:46:34,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34 WrapperNode [2024-11-08 23:46:34,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:46:34,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:46:34,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:46:34,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:46:34,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,284 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85 [2024-11-08 23:46:34,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:46:34,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:46:34,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:46:34,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:46:34,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:46:34,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:46:34,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:46:34,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:46:34,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:46:34,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:46:34,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:46:34,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:46:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:46:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 23:46:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 23:46:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 23:46:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 23:46:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:46:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:46:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:46:34,510 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:46:34,513 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:46:34,845 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 23:46:34,845 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:46:34,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:46:34,953 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:46:34,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:46:34 BoogieIcfgContainer [2024-11-08 23:46:34,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:46:34,958 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:46:34,958 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:46:34,972 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:46:34,973 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:46:34" (1/1) ... [2024-11-08 23:46:34,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:46:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:46:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-08 23:46:35,064 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-08 23:46:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:46:35,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:46:35,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:46:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:46:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:46:35,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:46:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2024-11-08 23:46:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-08 23:46:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:46:35,635 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:46:35,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:46:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:46:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:46:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:46:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-08 23:46:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-08 23:46:35,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:46:35,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:46:35,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:46:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:46:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:46:36,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:46:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2024-11-08 23:46:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-08 23:46:36,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:46:36,565 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:46:36,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:46:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:46:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:46:42,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 23:46:42,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:46:45,292 WARN L873 $PredicateComparison]: unable to prove that (and (<= 1 |c_ULTIMATE.start_main1_~y~0#1|) (or (and (<= 0 (+ |c_ULTIMATE.start_gcd_test_~a#1| 128)) (<= (+ |c_ULTIMATE.start_gcd_test_~a#1| 1) 0) (exists ((v_y_5 Int)) (let ((.cse0 (* 256 v_y_5)) (.cse1 (* |c_ULTIMATE.start_gcd_test_~a#1| 255))) (and (= (mod (+ 65280 .cse0 .cse1) |c_ULTIMATE.start_main1_~y~0#1|) 0) (<= 0 (+ 65408 .cse0 .cse1)) (<= (+ 65281 .cse0 .cse1) 0))))) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| 127) (<= 0 |c_ULTIMATE.start_gcd_test_~a#1|) (= (mod |c_ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_main1_~y~0#1|) 0))) (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (= |c_ULTIMATE.start_main1_~y~0#1| |c_ULTIMATE.start_gcd_test_~b#1|)) is different from true [2024-11-08 23:46:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-08 23:47:00,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 23:47:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:47:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2024-11-08 23:47:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2024-11-08 23:47:04,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:47:04,311 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:47:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:47:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:47:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:47:14,478 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 23:47:14,483 INFO L158 Benchmark]: Toolchain (without parser) took 40600.32ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 107.1MB in the beginning and 138.7MB in the end (delta: -31.6MB). Peak memory consumption was 287.5kB. Max. memory is 16.1GB. [2024-11-08 23:47:14,484 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 146.8MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:47:14,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.93ms. Allocated memory is still 146.8MB. Free memory was 107.1MB in the beginning and 93.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 23:47:14,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.06ms. Allocated memory is still 146.8MB. Free memory was 93.2MB in the beginning and 91.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:47:14,486 INFO L158 Benchmark]: Boogie Preprocessor took 46.58ms. Allocated memory is still 146.8MB. Free memory was 91.2MB in the beginning and 89.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:47:14,487 INFO L158 Benchmark]: RCFGBuilder took 624.19ms. Allocated memory is still 146.8MB. Free memory was 89.9MB in the beginning and 72.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:47:14,488 INFO L158 Benchmark]: CodeCheck took 39524.16ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 71.9MB in the beginning and 138.7MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:47:14,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 146.8MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.93ms. Allocated memory is still 146.8MB. Free memory was 107.1MB in the beginning and 93.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.06ms. Allocated memory is still 146.8MB. Free memory was 93.2MB in the beginning and 91.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.58ms. Allocated memory is still 146.8MB. Free memory was 91.2MB in the beginning and 89.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.19ms. Allocated memory is still 146.8MB. Free memory was 89.9MB in the beginning and 72.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 39524.16ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 71.9MB in the beginning and 138.7MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 23:47:14,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/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_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk --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 8060cb1ce07e11abaa182acb01dfa4175ca7fb1d00421c40b0d3868d7fbf682f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:47:17,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:47:17,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 23:47:17,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:47:17,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:47:17,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:47:17,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:47:17,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:47:17,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:47:17,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:47:17,685 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:47:17,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:47:17,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:47:17,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:47:17,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:47:17,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:47:17,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:47:17,694 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:47:17,695 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:47:17,696 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:47:17,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:47:17,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:47:17,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:47:17,698 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:47:17,699 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:47:17,699 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:47:17,700 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:47:17,700 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:47:17,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:47:17,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:47:17,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:47:17,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:47:17,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:47:17,704 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:47:17,704 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:47:17,705 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:47:17,705 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_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8060cb1ce07e11abaa182acb01dfa4175ca7fb1d00421c40b0d3868d7fbf682f [2024-11-08 23:47:18,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:47:18,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:47:18,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:47:18,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:47:18,315 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:47:18,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_1+newton_2_6.i Unable to find full path for "g++" [2024-11-08 23:47:20,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:47:21,172 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:47:21,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i [2024-11-08 23:47:21,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data/1dd6b4894/598c56b317cd4e16a80d5e543e936788/FLAG129e2003f [2024-11-08 23:47:21,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/data/1dd6b4894/598c56b317cd4e16a80d5e543e936788 [2024-11-08 23:47:21,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:47:21,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:47:21,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:47:21,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:47:21,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:47:21,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11274376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21, skipping insertion in model container [2024-11-08 23:47:21,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,288 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:47:21,619 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[1226,1239] [2024-11-08 23:47:21,681 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[2807,2820] [2024-11-08 23:47:21,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:47:21,711 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:47:21,735 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[1226,1239] [2024-11-08 23:47:21,768 WARN L250 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_128a510c-2076-4858-bea5-995cb70f1844/sv-benchmarks/c/combinations/gcd_1+newton_2_6.i[2807,2820] [2024-11-08 23:47:21,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:47:21,842 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:47:21,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21 WrapperNode [2024-11-08 23:47:21,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:47:21,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:47:21,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:47:21,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:47:21,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,968 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 80 [2024-11-08 23:47:21,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:47:21,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:47:21,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:47:21,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:47:21,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:21,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:22,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:22,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:22,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:22,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:22,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:47:22,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:47:22,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:47:22,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:47:22,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:47:21" (1/1) ... [2024-11-08 23:47:22,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:47:22,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:47:22,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:47:22,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:47:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:47:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:47:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-08 23:47:22,105 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-08 23:47:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 23:47:22,106 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 23:47:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:47:22,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:47:22,208 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:47:22,211 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:47:48,045 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 23:47:48,046 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:47:48,145 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:47:48,145 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:47:48,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:47:48 BoogieIcfgContainer [2024-11-08 23:47:48,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:47:48,147 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:47:48,147 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:47:48,156 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:47:48,156 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:47:48" (1/1) ... [2024-11-08 23:47:48,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:47:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:47:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2024-11-08 23:47:48,224 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-08 23:47:48,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:47:48,228 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:47:48,229 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:47:48,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:47:48,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:47:48,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:47:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:48,438 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:47:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:48,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 23:47:48,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:47:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:47:48,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:47:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:47:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2024-11-08 23:47:49,001 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-08 23:47:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:47:49,002 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:47:49,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:47:49,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:47:49,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:47:49,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 23:47:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:49,087 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:47:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:49,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 23:47:49,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:47:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:47:49,216 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:47:49,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 23:47:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:47:49,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-08 23:47:49,425 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-08 23:47:49,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:47:49,427 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:47:49,427 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:47:49,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:47:49,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:47:49,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 23:47:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:49,821 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:47:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:49,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 23:47:49,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:47:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:47:50,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-08 23:47:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:47:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2024-11-08 23:47:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-08 23:47:53,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:47:53,172 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:47:53,172 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:47:53,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:47:53,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:47:53,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 23:47:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:54,258 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:47:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:47:57,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 23:47:57,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:48:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:48:09,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-08 23:48:18,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 23:48:23,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 23:48:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:48:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2024-11-08 23:48:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2024-11-08 23:48:24,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 23:48:24,175 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:48:24,176 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:48:24,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:48:24,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:48:24,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 23:48:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:25,255 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:48:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:48:28,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 23:48:28,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:48:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 23:48:36,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-08 23:48:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:48:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2024-11-08 23:48:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-08 23:48:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 23:48:37,985 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:48:37,985 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:48:37,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:48:37,990 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:48:37,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128a510c-2076-4858-bea5-995cb70f1844/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process