./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_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/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_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b --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 [2024-12-05 21:56:04,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:56:04,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:56:04,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:56:04,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:56:04,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:56:04,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:56:04,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:56:04,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:56:04,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:56:04,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:56:04,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:56:04,754 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:56:04,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:56:04,755 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:56:04,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:56:04,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:56:04,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:56:04,756 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_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-05 21:56:04,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:56:04,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:56:04,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:56:04,994 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:56:04,994 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:56:04,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2024-12-05 21:56:07,652 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/data/6f66682aa/a01487b9698d4ae0a10f8e5475958375/FLAG06de7c6dd [2024-12-05 21:56:07,855 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:56:07,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2024-12-05 21:56:07,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/data/6f66682aa/a01487b9698d4ae0a10f8e5475958375/FLAG06de7c6dd [2024-12-05 21:56:07,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/data/6f66682aa/a01487b9698d4ae0a10f8e5475958375 [2024-12-05 21:56:07,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:56:07,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:56:07,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:56:07,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:56:07,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:56:07,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:56:07" (1/1) ... [2024-12-05 21:56:07,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278e3d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:07, skipping insertion in model container [2024-12-05 21:56:07,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:56:07" (1/1) ... [2024-12-05 21:56:07,895 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:56:07,999 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_e3e5e6b3-c54e-4664-bdff-edc679debecc/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2024-12-05 21:56:08,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:56:08,025 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:56:08,033 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_e3e5e6b3-c54e-4664-bdff-edc679debecc/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2024-12-05 21:56:08,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:56:08,053 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:56:08,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08 WrapperNode [2024-12-05 21:56:08,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:56:08,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:56:08,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:56:08,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:56:08,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,076 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-12-05 21:56:08,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:56:08,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:56:08,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:56:08,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:56:08,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,086 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:56:08,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:56:08,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:56:08,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:56:08,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:56:08,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:56:08,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:56:08,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:56:08,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:56:08,145 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-05 21:56:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-05 21:56:08,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:56:08,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:56:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:56:08,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 21:56:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 21:56:08,195 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:56:08,196 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:56:08,310 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-05 21:56:08,310 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:56:08,345 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:56:08,346 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 21:56:08,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:56:08 BoogieIcfgContainer [2024-12-05 21:56:08,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:56:08,347 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:56:08,347 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:56:08,354 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:56:08,354 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:56:08" (1/1) ... [2024-12-05 21:56:08,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:56:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2024-12-05 21:56:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-12-05 21:56:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:56:08,403 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:08,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:56:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-05 21:56:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-05 21:56:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 21:56:08,539 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:56:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:08,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 21:56:08,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:56:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:56:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2024-12-05 21:56:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2024-12-05 21:56:08,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 21:56:08,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:08,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:08,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:56:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2024-12-05 21:56:09,136 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2024-12-05 21:56:09,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-05 21:56:09,136 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:56:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:09,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 21:56:09,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:56:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:56:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 35 states and 59 transitions. [2024-12-05 21:56:09,621 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2024-12-05 21:56:09,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-05 21:56:09,622 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:56:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:09,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 21:56:09,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:56:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 21:56:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:10,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 70 transitions. [2024-12-05 21:56:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2024-12-05 21:56:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 21:56:10,277 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:10,458 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-05 21:56:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 41 states and 71 transitions. [2024-12-05 21:56:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2024-12-05 21:56:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-05 21:56:10,700 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:10,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-05 21:56:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:11,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 47 states and 84 transitions. [2024-12-05 21:56:11,772 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2024-12-05 21:56:11,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-05 21:56:11,773 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:11,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:56:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:56:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:56:11,823 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:56:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:56:11,852 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-12-05 21:56:11,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:56:11 ImpRootNode [2024-12-05 21:56:11,880 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:56:11,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:56:11,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:56:11,881 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:56:11,881 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:56:08" (3/4) ... [2024-12-05 21:56:11,882 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 21:56:11,924 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 22. [2024-12-05 21:56:11,978 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 21:56:11,979 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 21:56:11,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:56:11,980 INFO L158 Benchmark]: Toolchain (without parser) took 4101.94ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 93.2MB in the beginning and 186.4MB in the end (delta: -93.2MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. [2024-12-05 21:56:11,980 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:56:11,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.14ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 81.8MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:56:11,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.31ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:56:11,981 INFO L158 Benchmark]: Boogie Preprocessor took 16.37ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.9MB in the end (delta: 805.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:56:11,981 INFO L158 Benchmark]: RCFGBuilder took 252.18ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 67.0MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:56:11,981 INFO L158 Benchmark]: CodeCheck took 3533.09ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 67.0MB in the beginning and 75.8MB in the end (delta: -8.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2024-12-05 21:56:11,982 INFO L158 Benchmark]: Witness Printer took 98.24ms. Allocated memory is still 218.1MB. Free memory was 75.8MB in the beginning and 186.4MB in the end (delta: -110.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-12-05 21:56:11,984 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: 3.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 412 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 336 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 507 IncrementalHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 298 mSDtfsCounter, 507 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1217 GetRequests, 1129 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2479 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 303 SizeOfPredicates, 3 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 61/63 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 0.27ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.14ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 81.8MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.31ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.37ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.9MB in the end (delta: 805.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 252.18ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 67.0MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3533.09ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 67.0MB in the beginning and 75.8MB in the end (delta: -8.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Witness Printer took 98.24ms. Allocated memory is still 218.1MB. Free memory was 75.8MB in the beginning and 186.4MB in the end (delta: -110.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 21:56:12,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e5e6b3-c54e-4664-bdff-edc679debecc/bin/ukojak-verify-CZk0znPC7b/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