./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3 --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 0af3ae3e1b18402d7b766cf1943edddd3bf558b5da3e0e85ca5f8b1f74f72a1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:33:16,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:33:16,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:33:16,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:33:16,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:33:16,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:33:16,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:33:16,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:33:16,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:33:16,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:33:16,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:33:16,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:33:16,671 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:33:16,672 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:33:16,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:33:16,673 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:33:16,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:33:16,673 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:33:16,673 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:33:16,673 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:33:16,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:33:16,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:33:16,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:33:16,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:33:16,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:33:16,674 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:33:16,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:33:16,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3 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 -> 0af3ae3e1b18402d7b766cf1943edddd3bf558b5da3e0e85ca5f8b1f74f72a1e [2024-11-25 03:33:17,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:33:17,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:33:17,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:33:17,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:33:17,078 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:33:17,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2024-11-25 03:33:21,353 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/data/d181a0293/01ee5f249a5c4fdfa1fd42c22a24c469/FLAG545c56a2d [2024-11-25 03:33:21,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:33:21,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2024-11-25 03:33:21,852 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/data/d181a0293/01ee5f249a5c4fdfa1fd42c22a24c469/FLAG545c56a2d [2024-11-25 03:33:21,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/data/d181a0293/01ee5f249a5c4fdfa1fd42c22a24c469 [2024-11-25 03:33:21,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:33:21,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:33:21,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:33:21,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:33:21,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:33:21,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:33:21" (1/1) ... [2024-11-25 03:33:21,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50eadb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:21, skipping insertion in model container [2024-11-25 03:33:21,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:33:21" (1/1) ... [2024-11-25 03:33:21,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:33:22,193 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_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2024-11-25 03:33:22,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:33:22,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:33:22,256 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_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2024-11-25 03:33:22,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:33:22,285 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:33:22,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22 WrapperNode [2024-11-25 03:33:22,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:33:22,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:33:22,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:33:22,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:33:22,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,325 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-25 03:33:22,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:33:22,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:33:22,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:33:22,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:33:22,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,347 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:33:22,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:33:22,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:33:22,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:33:22,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:33:22,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:33:22,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:33:22,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:33:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:33:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 03:33:22,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 03:33:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:33:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:33:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:33:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 03:33:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 03:33:22,556 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:33:22,559 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:33:22,784 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-25 03:33:22,784 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:33:22,864 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:33:22,866 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 03:33:22,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:22 BoogieIcfgContainer [2024-11-25 03:33:22,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:33:22,867 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:33:22,867 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:33:22,878 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:33:22,878 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:22" (1/1) ... [2024-11-25 03:33:22,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:33:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2024-11-25 03:33:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-11-25 03:33:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:33:22,952 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:22,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:33:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:33:23,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:23,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-25 03:33:23,157 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-25 03:33:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:33:23,158 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:23,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:33:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:33:23,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 03:33:23,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:33:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:33:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2024-11-25 03:33:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2024-11-25 03:33:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:33:23,663 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:23,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:33:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:33:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2024-11-25 03:33:24,327 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2024-11-25 03:33:24,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:33:24,328 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:24,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:33:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:33:24,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 03:33:24,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:33:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:33:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:25,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 35 states and 59 transitions. [2024-11-25 03:33:25,322 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2024-11-25 03:33:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-25 03:33:25,323 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:25,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:33:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:33:25,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 03:33:25,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:33:25,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-25 03:33:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 70 transitions. [2024-11-25 03:33:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2024-11-25 03:33:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 03:33:26,637 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:26,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:33:26,988 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-25 03:33:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:33:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 41 states and 71 transitions. [2024-11-25 03:33:27,393 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2024-11-25 03:33:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-25 03:33:27,394 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:33:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:33:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:33:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:33:27,501 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:33:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:33:27,574 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-25 03:33:27,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:33:27 ImpRootNode [2024-11-25 03:33:27,630 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:33:27,631 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:33:27,632 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:33:27,632 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:33:27,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:22" (3/4) ... [2024-11-25 03:33:27,634 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:33:27,726 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 22. [2024-11-25 03:33:27,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:33:27,805 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:33:27,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:33:27,806 INFO L158 Benchmark]: Toolchain (without parser) took 5880.40ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 81.4MB in the end (delta: 48.1MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2024-11-25 03:33:27,807 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:33:27,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.78ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 118.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:33:27,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.65ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:33:27,808 INFO L158 Benchmark]: Boogie Preprocessor took 43.22ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 115.9MB in the end (delta: 606.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:33:27,808 INFO L158 Benchmark]: RCFGBuilder took 496.56ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 102.3MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:33:27,809 INFO L158 Benchmark]: CodeCheck took 4763.33ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 87.3MB in the end (delta: 15.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-11-25 03:33:27,810 INFO L158 Benchmark]: Witness Printer took 173.63ms. Allocated memory is still 167.8MB. Free memory was 87.3MB in the beginning and 81.4MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:33:27,812 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 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 328 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 268 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 242 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 946 GetRequests, 884 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 3 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 40/40 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int counter = 0; [L20] long long a, b, p, q, r, s; [L21] int x, y; [L22] x = __VERIFIER_nondet_int() [L23] y = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(x >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L24] RET assume_abort_if_not(x >= 1) VAL [counter=0, x=3, y=2] [L25] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L25] RET assume_abort_if_not(y >= 1) VAL [counter=0, x=3, y=2] [L27] a = x [L28] b = y [L29] p = 1 [L30] q = 0 [L31] r = 0 [L32] s = 1 VAL [a=3, b=2, counter=0, p=1, q=0, r=0, s=1, x=3, y=2] [L34] EXPR counter++ VAL [a=3, b=2, counter=1, p=1, q=0, r=0, s=1, x=3, y=2] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(1 == p * s - r * q) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L35] RET __VERIFIER_assert(1 == p * s - r * q) VAL [a=3, b=2, counter=1, p=1, q=0, r=0, s=1, x=3, y=2] [L36] CALL __VERIFIER_assert(a == y * r + x * p) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L36] RET __VERIFIER_assert(a == y * r + x * p) VAL [a=3, b=2, counter=1, p=1, q=0, r=0, s=1, x=3, y=2] [L37] CALL __VERIFIER_assert(b == x * q + y * s) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L37] RET __VERIFIER_assert(b == x * q + y * s) VAL [a=3, b=2, counter=1, p=1, q=0, r=0, s=1, x=3, y=2] [L39] COND FALSE !(!(a != b)) [L42] COND TRUE a > b [L43] a = a - b [L44] p = p - q [L45] r = r - s VAL [a=1, b=2, counter=1, p=1, q=0, r=-1, s=1, x=3, y=2] [L34] EXPR counter++ VAL [a=1, b=2, counter=2, p=1, q=0, r=-1, s=1, x=3, y=2] [L34] COND FALSE !(counter++<1) [L53] CALL __VERIFIER_assert(a - b == 0) VAL [\old(cond)=0, counter=2] [L11] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L13] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.78ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 118.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.65ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.22ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 115.9MB in the end (delta: 606.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 496.56ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 102.3MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4763.33ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 87.3MB in the end (delta: 15.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 173.63ms. Allocated memory is still 167.8MB. Free memory was 87.3MB in the beginning and 81.4MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:33:27,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7568b3d-133f-46d9-a3f4-c3bdebcf24f2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE