./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/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_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/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_b2a20311-694b-400b-98b7-1c4c9bc3bdff/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 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:21:18,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:21:18,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:21:18,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:21:18,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:21:18,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:21:18,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:21:18,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:21:18,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:21:18,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:21:18,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:21:18,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:21:18,491 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:21:18,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:21:18,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:21:18,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:21:18,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:21:18,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:21:18,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:21:18,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:21:18,494 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:21:18,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:21:18,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:21:18,496 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:21:18,499 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:21:18,500 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:21:18,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:21:18,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:21:18,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:21:18,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:21:18,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:21:18,502 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:21:18,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:21:18,507 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_b2a20311-694b-400b-98b7-1c4c9bc3bdff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb [2024-11-08 22:21:18,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:21:18,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:21:18,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:21:18,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:21:18,937 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:21:18,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/bitvector/gcd_2.c Unable to find full path for "g++" [2024-11-08 22:21:21,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:21:21,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:21:21,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/sv-benchmarks/c/bitvector/gcd_2.c [2024-11-08 22:21:21,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/data/ee45eff87/6dc935995d2b4f04b3cd96e1c1b82ae4/FLAG7fc92f080 [2024-11-08 22:21:21,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/data/ee45eff87/6dc935995d2b4f04b3cd96e1c1b82ae4 [2024-11-08 22:21:21,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:21:21,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:21:21,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:21:21,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:21:21,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:21:21,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b81c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21, skipping insertion in model container [2024-11-08 22:21:21,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:21:21,703 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_b2a20311-694b-400b-98b7-1c4c9bc3bdff/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2024-11-08 22:21:21,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:21:21,739 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:21:21,756 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_b2a20311-694b-400b-98b7-1c4c9bc3bdff/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2024-11-08 22:21:21,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:21:21,784 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:21:21,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21 WrapperNode [2024-11-08 22:21:21,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:21:21,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:21:21,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:21:21,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:21:21,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,825 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-11-08 22:21:21,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:21:21,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:21:21,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:21:21,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:21:21,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:21:21,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:21:21,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:21:21,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:21:21,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:21:21" (1/1) ... [2024-11-08 22:21:21,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:21:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:21:21,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:21:21,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:21:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:21:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:21:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:21:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:21:22,006 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:21:22,008 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:21:22,187 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 22:21:22,187 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:21:22,276 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:21:22,276 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:21:22,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:21:22 BoogieIcfgContainer [2024-11-08 22:21:22,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:21:22,278 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:21:22,278 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:21:22,290 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:21:22,290 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:21:22" (1/1) ... [2024-11-08 22:21:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:22,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2024-11-08 22:21:22,352 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2024-11-08 22:21:22,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 22:21:22,354 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:22,777 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 22:21:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-08 22:21:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-08 22:21:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:21:22,926 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:22,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:23,029 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 22:21:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-08 22:21:23,072 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-08 22:21:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:21:23,072 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:23,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:23,571 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 22:21:24,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-08 22:21:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-08 22:21:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 22:21:24,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:25,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:21:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2024-11-08 22:21:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-11-08 22:21:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:21:26,792 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:26,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:21:31,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2024-11-08 22:21:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2024-11-08 22:21:31,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 22:21:31,229 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:21:31,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:21:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:21:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 16 states and 25 transitions. [2024-11-08 22:21:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2024-11-08 22:21:40,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:21:40,140 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-11-08 22:21:40,148 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-08 22:21:41,099 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:21:41,100 INFO L77 FloydHoareUtils]: At program point L27(lines 27 31) the Hoare annotation is: (let ((.cse4 (< |ULTIMATE.start_main_~y~0#1| 1))) (let ((.cse0 (or (< |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1|) .cse4)) (.cse2 (= (mod |ULTIMATE.start_gcd_test_~a#1| |ULTIMATE.start_gcd_test_~b#1|) 0)) (.cse3 (< 0 (+ |ULTIMATE.start_gcd_test_~a#1| 1))) (.cse1 (not (= |ULTIMATE.start_gcd_test_~b#1| 0)))) (or (and .cse0 .cse1 (or .cse2 .cse3) (<= 0 (+ |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1|))) (and .cse0 .cse1 (or (< 128 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_gcd_test_~b#1|) .cse4)) (and (= |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1|) (or (< |ULTIMATE.start_main_~y~0#1| 128) .cse2 .cse3) .cse1)))) [2024-11-08 22:21:41,101 INFO L77 FloydHoareUtils]: At program point L27-2(lines 27 31) the Hoare annotation is: (let ((.cse4 (mod |ULTIMATE.start_gcd_test_~a#1| |ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse0 (< |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (< |ULTIMATE.start_gcd_test_~a#1| (+ |ULTIMATE.start_main_~y~0#1| 1))) (.cse2 (= .cse4 0)) (.cse3 (< 0 (+ |ULTIMATE.start_gcd_test_~a#1| 1)))) (or (and .cse0 .cse1 (or (= |ULTIMATE.start_gcd_test_~b#1| 0) .cse2 .cse3) (or (< (mod .cse4 256) (+ |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1| .cse4 1)) (<= 0 |ULTIMATE.start_gcd_test_~b#1|))) (and (or (< 128 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_gcd_test_~b#1|)) .cse0 .cse1) (= |ULTIMATE.start_main_~y~0#1| 0) (and (or (= |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_main_~y~0#1|) (< |ULTIMATE.start_main_~y~0#1| 0)) (or (< |ULTIMATE.start_main_~y~0#1| 128) .cse2 .cse3))))) [2024-11-08 22:21:41,101 INFO L77 FloydHoareUtils]: At program point L27-3(lines 27 31) the Hoare annotation is: (not (and (not (or (= |ULTIMATE.start_main_~y~0#1| 0) (< |ULTIMATE.start_main_~y~0#1| 0))) (<= (+ |ULTIMATE.start_main_~y~0#1| 1) |ULTIMATE.start_gcd_test_~a#1|))) [2024-11-08 22:21:41,101 INFO L77 FloydHoareUtils]: At program point L15(lines 15 17) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2024-11-08 22:21:41,101 INFO L77 FloydHoareUtils]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2024-11-08 22:21:41,102 INFO L77 FloydHoareUtils]: At program point L44(lines 44 46) the Hoare annotation is: (not (and (not (or (= |ULTIMATE.start_main_~y~0#1| 0) (< |ULTIMATE.start_main_~y~0#1| 0))) (<= (+ |ULTIMATE.start_main_~y~0#1| 1) |ULTIMATE.start_main_~g~0#1|))) [2024-11-08 22:21:41,102 INFO L77 FloydHoareUtils]: At program point L44-2(lines 44 46) the Hoare annotation is: true [2024-11-08 22:21:41,102 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:21:41,102 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2024-11-08 22:21:41,102 INFO L75 FloydHoareUtils]: For program point L16(line 16) no Hoare annotation was computed. [2024-11-08 22:21:41,112 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,116 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,120 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,121 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,125 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,125 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,125 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,126 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,127 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~y~0 [2024-11-08 22:21:41,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:21:41 ImpRootNode [2024-11-08 22:21:41,132 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:21:41,133 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:21:41,133 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:21:41,133 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:21:41,134 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:21:22" (3/4) ... [2024-11-08 22:21:41,139 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:21:41,148 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-08 22:21:41,149 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 22:21:41,149 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 22:21:41,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:21:41,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:21:41,259 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:21:41,260 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:21:41,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:21:41,272 INFO L158 Benchmark]: Toolchain (without parser) took 19884.48ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 81.5MB in the beginning and 186.2MB in the end (delta: -104.7MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2024-11-08 22:21:41,273 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 118.2MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:21:41,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.36ms. Allocated memory is still 144.7MB. Free memory was 81.4MB in the beginning and 111.4MB in the end (delta: -30.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:21:41,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.15ms. Allocated memory is still 144.7MB. Free memory was 111.4MB in the beginning and 109.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:21:41,278 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 144.7MB. Free memory was 109.8MB in the beginning and 108.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:21:41,278 INFO L158 Benchmark]: RCFGBuilder took 409.96ms. Allocated memory is still 144.7MB. Free memory was 108.8MB in the beginning and 94.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:21:41,278 INFO L158 Benchmark]: CodeCheck took 18854.44ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 94.2MB in the beginning and 64.0MB in the end (delta: 30.1MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. [2024-11-08 22:21:41,279 INFO L158 Benchmark]: Witness Printer took 138.36ms. Allocated memory is still 218.1MB. Free memory was 64.0MB in the beginning and 186.2MB in the end (delta: -122.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-08 22:21:41,281 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 147 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 147 mSolverCounterUnsat, 18 mSDtfsCounter, 447 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 553 GetRequests, 430 SyntacticMatches, 13 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5350 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/30 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 - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 118.2MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.36ms. Allocated memory is still 144.7MB. Free memory was 81.4MB in the beginning and 111.4MB in the end (delta: -30.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.15ms. Allocated memory is still 144.7MB. Free memory was 111.4MB in the beginning and 109.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 144.7MB. Free memory was 109.8MB in the beginning and 108.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.96ms. Allocated memory is still 144.7MB. Free memory was 108.8MB in the beginning and 94.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 18854.44ms. Allocated memory was 144.7MB in the beginning and 218.1MB in the end (delta: 73.4MB). Free memory was 94.2MB in the beginning and 64.0MB in the end (delta: 30.1MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. * Witness Printer took 138.36ms. Allocated memory is still 218.1MB. Free memory was 64.0MB in the beginning and 186.2MB in the end (delta: -122.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~y~0 RESULT: Ultimate proved your program to be correct! [2024-11-08 22:21:41,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a20311-694b-400b-98b7-1c4c9bc3bdff/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 Writing output log to file Ultimate.log Result: TRUE