./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9 --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 b13c7652df725cabbd532da1a8071964fc183988971efb0d5513967afd08dfea --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:35:03,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:35:04,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:35:04,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:35:04,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:35:04,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:35:04,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:35:04,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:35:04,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:35:04,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:35:04,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:35:04,089 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:35:04,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:35:04,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:35:04,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:35:04,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:35:04,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:35:04,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:35:04,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:35:04,093 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:35:04,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:35:04,095 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:35:04,095 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:35:04,096 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:35:04,096 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:35:04,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:35:04,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:35:04,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:35:04,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:35:04,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:35:04,099 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:35:04,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:35:04,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:35:04,100 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_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b13c7652df725cabbd532da1a8071964fc183988971efb0d5513967afd08dfea [2023-12-03 03:35:04,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:35:04,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:35:04,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:35:04,398 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:35:04,398 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:35:04,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i [2023-12-03 03:35:07,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:35:07,446 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:35:07,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i [2023-12-03 03:35:07,454 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/data/9b29dbd19/c777cc72aa57428cb5158cdfe9cbd66f/FLAG1738cee37 [2023-12-03 03:35:07,470 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/data/9b29dbd19/c777cc72aa57428cb5158cdfe9cbd66f [2023-12-03 03:35:07,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:35:07,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:35:07,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:35:07,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:35:07,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:35:07,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4870fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07, skipping insertion in model container [2023-12-03 03:35:07,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:35:07,655 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_02036ffc-8aad-442a-b8f7-3534bde54213/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i[951,964] [2023-12-03 03:35:07,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:35:07,678 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:35:07,693 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_02036ffc-8aad-442a-b8f7-3534bde54213/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i[951,964] [2023-12-03 03:35:07,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:35:07,713 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:35:07,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07 WrapperNode [2023-12-03 03:35:07,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:35:07,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:35:07,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:35:07,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:35:07,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,746 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-12-03 03:35:07,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:35:07,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:35:07,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:35:07,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:35:07,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:35:07,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:35:07,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:35:07,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:35:07,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:07" (1/1) ... [2023-12-03 03:35:07,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:35:07,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:35:07,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:35:07,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:35:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:35:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:35:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:35:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:35:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 03:35:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 03:35:07,918 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:35:07,920 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:35:08,057 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:35:08,123 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:35:08,123 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 03:35:08,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:35:08 BoogieIcfgContainer [2023-12-03 03:35:08,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:35:08,126 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:35:08,126 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:35:08,136 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:35:08,136 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:35:08" (1/1) ... [2023-12-03 03:35:08,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:35:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-12-03 03:35:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-03 03:35:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:35:08,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:08,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:08,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 03:35:08,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-12-03 03:35:08,409 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-12-03 03:35:08,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:35:08,409 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:08,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:08,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 03:35:08,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:08,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:08,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2023-12-03 03:35:08,707 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-12-03 03:35:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:35:08,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:08,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:08,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 03:35:08,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:09,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-12-03 03:35:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-12-03 03:35:09,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:35:09,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:09,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:09,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 03:35:09,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:09,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2023-12-03 03:35:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2023-12-03 03:35:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 03:35:09,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:09,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 03:35:09,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2023-12-03 03:35:10,804 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2023-12-03 03:35:10,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 03:35:10,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:10,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 03:35:10,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:15,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:35:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 63 transitions. [2023-12-03 03:35:15,640 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2023-12-03 03:35:15,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 03:35:15,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:15,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 03:35:15,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 03:35:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 45 states and 71 transitions. [2023-12-03 03:35:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 71 transitions. [2023-12-03 03:35:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 03:35:16,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:16,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:17,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 03:35:17,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 03:35:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 53 states and 87 transitions. [2023-12-03 03:35:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 87 transitions. [2023-12-03 03:35:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 03:35:19,392 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:19,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:19,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 03:35:19,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:35:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 03:35:20,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 30 states and 37 transitions. [2023-12-03 03:35:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-12-03 03:35:20,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:35:20,196 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-12-03 03:35:20,204 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 03:35:20,346 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:35:20,349 INFO L560 CodeCheckObserver]: Invariant with dag size 25 [2023-12-03 03:35:20,353 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:35:20,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:35:20 ImpRootNode [2023-12-03 03:35:20,353 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:35:20,354 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:35:20,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:35:20,354 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:35:20,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:35:08" (3/4) ... [2023-12-03 03:35:20,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:35:20,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 03:35:20,362 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 03:35:20,363 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 03:35:20,363 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 03:35:20,363 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:35:20,459 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:35:20,459 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:35:20,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:35:20,461 INFO L158 Benchmark]: Toolchain (without parser) took 12986.23ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 127.2MB in the beginning and 95.5MB in the end (delta: 31.7MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2023-12-03 03:35:20,461 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:35:20,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.84ms. Allocated memory is still 163.6MB. Free memory was 126.8MB in the beginning and 116.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:35:20,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.07ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 115.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:35:20,463 INFO L158 Benchmark]: Boogie Preprocessor took 18.89ms. Allocated memory is still 163.6MB. Free memory was 115.0MB in the beginning and 113.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:35:20,463 INFO L158 Benchmark]: RCFGBuilder took 358.76ms. Allocated memory is still 163.6MB. Free memory was 113.8MB in the beginning and 127.2MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 03:35:20,464 INFO L158 Benchmark]: CodeCheck took 12227.37ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 126.8MB in the beginning and 99.7MB in the end (delta: 27.1MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2023-12-03 03:35:20,464 INFO L158 Benchmark]: Witness Printer took 105.89ms. Allocated memory is still 197.1MB. Free memory was 99.7MB in the beginning and 95.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:35:20,467 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: 12.0s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 17.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 451 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 382 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1107 IncrementalHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 382 mSolverCounterUnsat, 177 mSDtfsCounter, 1107 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1639 GetRequests, 1515 SyntacticMatches, 26 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4214 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1187 SizeOfPredicates, 16 NumberOfNonLiveVariables, 524 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 49/99 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) <= 2)) && (q == 0)) && (A == r)) && (B == 1)) || (((((((A % 4294967296) <= 2) && (1 <= (r % 4294967296))) && (q == 0)) && (A == r)) && (2 == b)) && (B == 1))) || ((((((b == 4) && ((A % 4294967296) <= 2)) && (q == 0)) && (2 <= (r % 4294967296))) && (A == r)) && (B == 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 0.22ms. Allocated memory is still 115.3MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.84ms. Allocated memory is still 163.6MB. Free memory was 126.8MB in the beginning and 116.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.07ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 115.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.89ms. Allocated memory is still 163.6MB. Free memory was 115.0MB in the beginning and 113.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.76ms. Allocated memory is still 163.6MB. Free memory was 113.8MB in the beginning and 127.2MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 12227.37ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 126.8MB in the beginning and 99.7MB in the end (delta: 27.1MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 105.89ms. Allocated memory is still 197.1MB. Free memory was 99.7MB in the beginning and 95.5MB 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! [2023-12-03 03:35:20,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02036ffc-8aad-442a-b8f7-3534bde54213/bin/ukojak-verify-Qdu7aM0XO9/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