./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 9bd2c7ff 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_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL --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 0.2.3-dev-9bd2c7f [2023-11-19 02:37:58,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:37:58,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:37:58,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:37:58,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:37:58,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:37:58,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:37:58,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:37:58,966 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:37:58,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:37:58,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:37:58,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:37:58,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:37:58,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:37:58,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:37:58,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:37:58,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:37:58,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:37:58,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:37:58,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:37:58,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:37:58,979 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:37:58,979 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:37:58,979 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:37:58,980 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:37:58,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:37:58,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:58,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:37:58,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:37:58,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:37:58,984 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:37:58,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:37:58,984 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:37:58,985 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_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a [2023-11-19 02:37:59,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:37:59,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:37:59,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:37:59,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:37:59,350 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:37:59,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2023-11-19 02:38:02,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:38:02,772 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:38:02,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2023-11-19 02:38:02,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/data/171a3a2f8/b613efda77de49018f54eb623241e807/FLAGdc7fe91d5 [2023-11-19 02:38:02,797 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/data/171a3a2f8/b613efda77de49018f54eb623241e807 [2023-11-19 02:38:02,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:38:02,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:38:02,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:38:02,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:38:02,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:38:02,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:02" (1/1) ... [2023-11-19 02:38:02,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@909357e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:02, skipping insertion in model container [2023-11-19 02:38:02,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:02" (1/1) ... [2023-11-19 02:38:02,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:38:03,062 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_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2023-11-19 02:38:03,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:38:03,098 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:38:03,109 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_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2023-11-19 02:38:03,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:38:03,128 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:38:03,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03 WrapperNode [2023-11-19 02:38:03,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:38:03,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:38:03,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:38:03,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:38:03,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,162 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-11-19 02:38:03,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:38:03,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:38:03,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:38:03,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:38:03,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:38:03,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:38:03,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:38:03,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:38:03,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:38:03,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:38:03,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:38:03,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:38:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:38:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:38:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:38:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:38:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:38:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:38:03,316 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:38:03,318 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:38:03,452 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:38:03,511 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:38:03,512 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:38:03,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:03 BoogieIcfgContainer [2023-11-19 02:38:03,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:38:03,517 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:38:03,517 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:38:03,526 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:38:03,526 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:03" (1/1) ... [2023-11-19 02:38:03,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:38:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-11-19 02:38:03,624 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-11-19 02:38:03,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:38:03,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:03,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:03,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:38:03,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-19 02:38:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-19 02:38:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:38:03,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:03,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:03,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 02:38:03,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2023-11-19 02:38:04,313 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-19 02:38:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:38:04,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:04,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 02:38:04,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:04,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:04,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 02:38:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 02:38:04,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:38:04,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:04,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:04,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:38:04,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2023-11-19 02:38:05,440 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2023-11-19 02:38:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 02:38:05,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:05,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 02:38:05,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:06,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2023-11-19 02:38:06,676 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2023-11-19 02:38:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:38:06,678 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:06,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 02:38:06,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 02:38:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 20 states and 23 transitions. [2023-11-19 02:38:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-19 02:38:07,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:38:07,660 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-19 02:38:07,669 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:38:07,789 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:38:07,793 INFO L560 CodeCheckObserver]: Invariant with dag size 21 [2023-11-19 02:38:07,799 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:38:07,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:38:07 ImpRootNode [2023-11-19 02:38:07,799 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:38:07,800 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:38:07,800 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:38:07,800 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:38:07,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:03" (3/4) ... [2023-11-19 02:38:07,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:38:07,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 02:38:07,812 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 02:38:07,813 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 02:38:07,813 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:38:07,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:38:07,931 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:38:07,931 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:38:07,931 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:38:07,932 INFO L158 Benchmark]: Toolchain (without parser) took 5130.38ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 86.4MB in the beginning and 66.6MB in the end (delta: 19.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,933 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:07,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.54ms. Allocated memory is still 130.0MB. Free memory was 86.1MB in the beginning and 75.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 130.0MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,934 INFO L158 Benchmark]: Boogie Preprocessor took 22.52ms. Allocated memory is still 130.0MB. Free memory was 73.9MB in the beginning and 72.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,934 INFO L158 Benchmark]: RCFGBuilder took 329.63ms. Allocated memory is still 130.0MB. Free memory was 72.8MB in the beginning and 60.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,935 INFO L158 Benchmark]: CodeCheck took 4281.97ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 60.3MB in the beginning and 71.8MB in the end (delta: -11.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,935 INFO L158 Benchmark]: Witness Printer took 131.73ms. Allocated memory is still 163.6MB. Free memory was 71.8MB in the beginning and 66.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:38:07,937 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: 4.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 202 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 409 IncrementalHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 114 mSDtfsCounter, 409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 817 GetRequests, 745 SyntacticMatches, 16 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 436 SizeOfPredicates, 8 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 18/29 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 0.19ms. Allocated memory is still 130.0MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.54ms. Allocated memory is still 130.0MB. Free memory was 86.1MB in the beginning and 75.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 130.0MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.52ms. Allocated memory is still 130.0MB. Free memory was 73.9MB in the beginning and 72.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.63ms. Allocated memory is still 130.0MB. Free memory was 72.8MB in the beginning and 60.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 4281.97ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 60.3MB in the beginning and 71.8MB in the end (delta: -11.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 131.73ms. Allocated memory is still 163.6MB. Free memory was 71.8MB in the beginning and 66.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:38:07,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf2dd31-5cb7-49a0-b6b3-0854ddeb76b8/bin/ukojak-verify-G8NBE6pJGL/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