./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi --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 0.2.4-dev-0e0057c [2023-11-24 23:08:01,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:02,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:08:02,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:02,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:02,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:02,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:02,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:02,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:02,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:02,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:02,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:02,041 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:02,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:08:02,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:02,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:02,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:02,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:02,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:02,046 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:02,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:02,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:02,048 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:02,049 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:02,049 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:02,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:02,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:02,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:02,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:02,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:02,054 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:08:02,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:08:02,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:02,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a [2023-11-24 23:08:02,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:02,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:02,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:02,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:02,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:02,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2023-11-24 23:08:05,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:06,251 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:06,253 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2023-11-24 23:08:06,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/data/7280db55f/33683053148a4a09ab91e72c29ff0cae/FLAG51130036d [2023-11-24 23:08:06,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/data/7280db55f/33683053148a4a09ab91e72c29ff0cae [2023-11-24 23:08:06,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:06,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:06,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:06,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:06,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:06,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb8cf77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06, skipping insertion in model container [2023-11-24 23:08:06,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:06,542 WARN L240 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_93e567bd-dc3e-4383-955a-c6c474b89e99/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2023-11-24 23:08:06,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:06,587 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:06,604 WARN L240 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_93e567bd-dc3e-4383-955a-c6c474b89e99/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2023-11-24 23:08:06,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:06,630 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:06,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06 WrapperNode [2023-11-24 23:08:06,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:06,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:06,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:06,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:06,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,675 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-11-24 23:08:06,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:06,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:06,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:06,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:06,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:06,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:06,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:06,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:06,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:06" (1/1) ... [2023-11-24 23:08:06,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:06,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:06,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:06,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:08:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:08:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:08:06,895 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:06,898 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:07,073 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:07,176 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:07,183 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:08:07,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:07 BoogieIcfgContainer [2023-11-24 23:08:07,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:07,186 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:07,186 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:07,197 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:07,197 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:07" (1/1) ... [2023-11-24 23:08:07,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:07,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-11-24 23:08:07,287 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-11-24 23:08:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:08:07,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:07,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:07,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:07,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:07,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-24 23:08:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-24 23:08:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:08:07,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:07,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:07,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:08:07,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:08,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:08,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-11-24 23:08:08,161 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-11-24 23:08:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:08:08,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:08,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:08,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-24 23:08:08,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2023-11-24 23:08:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2023-11-24 23:08:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:08:08,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:08,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:09,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 23:08:09,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-11-24 23:08:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-11-24 23:08:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:08:09,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:09,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:09,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:08:09,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-24 23:08:10,615 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-24 23:08:10,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:08:10,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:10,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:10,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-24 23:08:10,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2023-11-24 23:08:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2023-11-24 23:08:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:08:12,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:12,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 23:08:12,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 23:08:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 20 states and 23 transitions. [2023-11-24 23:08:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-24 23:08:13,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:08:13,331 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-24 23:08:13,344 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:08:13,482 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:08:13,486 INFO L560 CodeCheckObserver]: Invariant with dag size 21 [2023-11-24 23:08:13,494 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:08:13,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:08:13 ImpRootNode [2023-11-24 23:08:13,496 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:08:13,497 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:08:13,497 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:08:13,498 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:08:13,498 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:07" (3/4) ... [2023-11-24 23:08:13,501 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:08:13,505 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 23:08:13,511 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-24 23:08:13,512 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 23:08:13,512 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:08:13,513 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:08:13,634 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:08:13,635 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:08:13,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:08:13,637 INFO L158 Benchmark]: Toolchain (without parser) took 7338.17ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 121.7MB in the beginning and 69.9MB in the end (delta: 51.8MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2023-11-24 23:08:13,638 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 155.2MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:13,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.66ms. Allocated memory is still 155.2MB. Free memory was 121.3MB in the beginning and 110.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:13,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.94ms. Allocated memory is still 155.2MB. Free memory was 110.9MB in the beginning and 109.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:13,640 INFO L158 Benchmark]: Boogie Preprocessor took 60.29ms. Allocated memory is still 155.2MB. Free memory was 109.1MB in the beginning and 108.3MB in the end (delta: 867.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:13,640 INFO L158 Benchmark]: RCFGBuilder took 448.23ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 95.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:08:13,641 INFO L158 Benchmark]: CodeCheck took 6310.22ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 95.4MB in the beginning and 74.1MB in the end (delta: 21.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:13,642 INFO L158 Benchmark]: Witness Printer took 138.22ms. Allocated memory is still 190.8MB. Free memory was 74.1MB in the beginning and 69.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:08:13,646 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 545 IncrementalHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 143 mSDtfsCounter, 545 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 938 GetRequests, 864 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 550 SizeOfPredicates, 11 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 19/31 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 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: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((b == 1) && ((A % 4294967296) <= 1)) && (q == 0)) && (A == r)) && (B == 1)) || (((((q == 0) && (A == r)) && (2 == b)) && (B == 1)) && ((r % 4294967296) == 1))) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 155.2MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.66ms. Allocated memory is still 155.2MB. Free memory was 121.3MB in the beginning and 110.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.94ms. Allocated memory is still 155.2MB. Free memory was 110.9MB in the beginning and 109.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.29ms. Allocated memory is still 155.2MB. Free memory was 109.1MB in the beginning and 108.3MB in the end (delta: 867.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 448.23ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 95.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 6310.22ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 95.4MB in the beginning and 74.1MB in the end (delta: 21.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Witness Printer took 138.22ms. Allocated memory is still 190.8MB. Free memory was 74.1MB in the beginning and 69.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:08:13,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93e567bd-dc3e-4383-955a-c6c474b89e99/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE