./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i --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_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/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_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/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_044d1872-5b82-430c-be9b-7ee9bcfc8421/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 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 06:16:59,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 06:16:59,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 06:16:59,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 06:16:59,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 06:16:59,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 06:16:59,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 06:16:59,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 06:16:59,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 06:16:59,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 06:16:59,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 06:16:59,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 06:16:59,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 06:16:59,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 06:16:59,343 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 06:16:59,343 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 06:16:59,343 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 06:16:59,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 06:16:59,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:16:59,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 06:16:59,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 06:16:59,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 06:16:59,344 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 06:16:59,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 06:16:59,344 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_044d1872-5b82-430c-be9b-7ee9bcfc8421/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 -> 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a [2024-12-06 06:16:59,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 06:16:59,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 06:16:59,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 06:16:59,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 06:16:59,658 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 06:16:59,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2024-12-06 06:17:03,140 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/data/8f1373ed7/bf489148bd7a45949ddecfb8fb7f696e/FLAG07103b666 [2024-12-06 06:17:03,350 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 06:17:03,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2024-12-06 06:17:03,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/data/8f1373ed7/bf489148bd7a45949ddecfb8fb7f696e/FLAG07103b666 [2024-12-06 06:17:03,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/data/8f1373ed7/bf489148bd7a45949ddecfb8fb7f696e [2024-12-06 06:17:03,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 06:17:03,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 06:17:03,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 06:17:03,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 06:17:03,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 06:17:03,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798ed788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03, skipping insertion in model container [2024-12-06 06:17:03,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 06:17:03,581 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_044d1872-5b82-430c-be9b-7ee9bcfc8421/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2024-12-06 06:17:03,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:17:03,612 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 06:17:03,626 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_044d1872-5b82-430c-be9b-7ee9bcfc8421/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2024-12-06 06:17:03,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:17:03,650 INFO L204 MainTranslator]: Completed translation [2024-12-06 06:17:03,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03 WrapperNode [2024-12-06 06:17:03,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 06:17:03,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 06:17:03,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 06:17:03,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 06:17:03,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,680 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2024-12-06 06:17:03,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 06:17:03,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 06:17:03,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 06:17:03,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 06:17:03,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,691 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 06:17:03,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 06:17:03,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 06:17:03,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 06:17:03,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:03" (1/1) ... [2024-12-06 06:17:03,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:17:03,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 06:17:03,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 06:17:03,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 06:17:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 06:17:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 06:17:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 06:17:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 06:17:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 06:17:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 06:17:03,816 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 06:17:03,818 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 06:17:03,952 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 06:17:03,953 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 06:17:04,011 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 06:17:04,011 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 06:17:04,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:04 BoogieIcfgContainer [2024-12-06 06:17:04,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 06:17:04,012 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 06:17:04,012 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 06:17:04,022 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 06:17:04,022 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:04" (1/1) ... [2024-12-06 06:17:04,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 06:17:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2024-12-06 06:17:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2024-12-06 06:17:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 06:17:04,085 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:04,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:17:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:04,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-06 06:17:04,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:17:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 06:17:04,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:04,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-12-06 06:17:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-12-06 06:17:04,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 06:17:04,543 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:04,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 06:17:05,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2024-12-06 06:17:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-12-06 06:17:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 06:17:05,270 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:05,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:05,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 06:17:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:05,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2024-12-06 06:17:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2024-12-06 06:17:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 06:17:05,782 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:05,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:17:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:05,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 06:17:05,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:17:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 06:17:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:07,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2024-12-06 06:17:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2024-12-06 06:17:07,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 06:17:07,302 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:17:07,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:17:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:17:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 06:17:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:17:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 16 states and 20 transitions. [2024-12-06 06:17:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-12-06 06:17:10,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 06:17:10,128 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 06:17:10,137 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 06:17:10,512 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 06:17:10,513 INFO L77 FloydHoareUtils]: At program point L48(line 48) the Hoare annotation is: true [2024-12-06 06:17:10,513 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 06:17:10,513 INFO L77 FloydHoareUtils]: At program point L38-1(lines 38 47) the Hoare annotation is: (= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) (mod (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~q~0#1|)) 4294967296)) [2024-12-06 06:17:10,513 INFO L77 FloydHoareUtils]: At program point L34-2(lines 34 37) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (.cse3 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (and .cse0 (<= 1 (mod |ULTIMATE.start_main_~r~0#1| 4294967296)) .cse1 .cse2 (= 2 |ULTIMATE.start_main_~b~0#1|) .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~b~0#1|) .cse2 .cse3))) [2024-12-06 06:17:10,513 INFO L77 FloydHoareUtils]: At program point L43-2(lines 38 47) the Hoare annotation is: true [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point L39(lines 38 47) the Hoare annotation is: (= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) (mod (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~q~0#1|)) 4294967296)) [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point L19-2(lines 18 24) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (< |__VERIFIER_assert_#in~cond| 1))) [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point L20(lines 20 21) the Hoare annotation is: true [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point L19(lines 19 22) the Hoare annotation is: (or (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (<= 1 __VERIFIER_assert_~cond)) (= __VERIFIER_assert_~cond 0)) [2024-12-06 06:17:10,514 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) the Hoare annotation is: true [2024-12-06 06:17:10,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 06:17:10 ImpRootNode [2024-12-06 06:17:10,535 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 06:17:10,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 06:17:10,536 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 06:17:10,536 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 06:17:10,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:04" (3/4) ... [2024-12-06 06:17:10,539 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 06:17:10,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 06:17:10,547 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-06 06:17:10,547 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-06 06:17:10,547 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 06:17:10,547 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 06:17:10,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 06:17:10,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 06:17:10,638 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 06:17:10,640 INFO L158 Benchmark]: Toolchain (without parser) took 7260.71ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 92.9MB in the beginning and 105.5MB in the end (delta: -12.6MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2024-12-06 06:17:10,640 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:17:10,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.43ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 06:17:10,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.98ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:17:10,641 INFO L158 Benchmark]: Boogie Preprocessor took 16.94ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.8MB in the end (delta: 739.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 06:17:10,641 INFO L158 Benchmark]: RCFGBuilder took 313.07ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 67.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 06:17:10,642 INFO L158 Benchmark]: CodeCheck took 6523.18ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 67.3MB in the beginning and 110.1MB in the end (delta: -42.8MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2024-12-06 06:17:10,642 INFO L158 Benchmark]: Witness Printer took 102.50ms. Allocated memory is still 192.9MB. Free memory was 110.1MB in the beginning and 105.5MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 06:17:10,644 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 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 178 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 442 IncrementalHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 178 mSolverCounterUnsat, 33 mSDtfsCounter, 442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 612 GetRequests, 532 SyntacticMatches, 8 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2028 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 435 SizeOfPredicates, 3 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 15/22 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 - PositiveResult [Line: 21]: 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 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((A <= 1) && (1 <= r)) && (q == 0)) && (A == r)) && (2 == b)) && (B == 1)) || (((((A <= 1) && (q == 0)) && (B == b)) && (A == r)) && (B == 1))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((0 < cond) || (cond == 0)) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.43ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.98ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.94ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.8MB in the end (delta: 739.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 313.07ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 67.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 6523.18ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 67.3MB in the beginning and 110.1MB in the end (delta: -42.8MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Witness Printer took 102.50ms. Allocated memory is still 192.9MB. Free memory was 110.1MB in the beginning and 105.5MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 06:17:10,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d1872-5b82-430c-be9b-7ee9bcfc8421/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 Result: TRUE