./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 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_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/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_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/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_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/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 b13c7652df725cabbd532da1a8071964fc183988971efb0d5513967afd08dfea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:33:07,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:33:07,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:33:07,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:33:07,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:33:07,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:33:07,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:33:07,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:33:07,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:33:07,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:33:07,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:33:07,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:33:07,361 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:33:07,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:33:07,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:33:07,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:33:07,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:33:07,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:33:07,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:33:07,366 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:33:07,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:33:07,367 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:33:07,368 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:33:07,368 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:33:07,369 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:33:07,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:33:07,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:33:07,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:33:07,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:33:07,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:33:07,373 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:33:07,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:33:07,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:33:07,374 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_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b13c7652df725cabbd532da1a8071964fc183988971efb0d5513967afd08dfea [2023-11-19 03:33:07,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:33:07,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:33:07,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:33:07,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:33:07,699 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:33:07,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i [2023-11-19 03:33:11,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:33:11,303 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:33:11,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i [2023-11-19 03:33:11,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/data/33d071e41/b1ebb0e5487e49539b005a1bf815b21b/FLAG5c25f72af [2023-11-19 03:33:11,655 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/data/33d071e41/b1ebb0e5487e49539b005a1bf815b21b [2023-11-19 03:33:11,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:33:11,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:33:11,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:33:11,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:33:11,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:33:11,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e303e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11, skipping insertion in model container [2023-11-19 03:33:11,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:33:11,847 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_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i[951,964] [2023-11-19 03:33:11,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:33:11,874 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:33:11,888 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_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound2.i[951,964] [2023-11-19 03:33:11,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:33:11,909 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:33:11,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11 WrapperNode [2023-11-19 03:33:11,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:33:11,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:33:11,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:33:11,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:33:11,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,947 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-11-19 03:33:11,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:33:11,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:33:11,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:33:11,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:33:11,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:33:11,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:33:11,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:33:11,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:33:11,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:11" (1/1) ... [2023-11-19 03:33:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:33:11,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:33:12,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:33:12,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:33:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:33:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:33:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:33:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:33:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:33:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:33:12,118 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:33:12,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:33:12,298 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:33:12,381 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:33:12,381 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:33:12,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:33:12 BoogieIcfgContainer [2023-11-19 03:33:12,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:33:12,387 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:33:12,387 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:33:12,397 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:33:12,397 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:33:12" (1/1) ... [2023-11-19 03:33:12,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:33:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-11-19 03:33:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-11-19 03:33:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:33:12,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:12,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:12,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:33:12,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:12,647 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 03:33:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-19 03:33:12,675 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-19 03:33:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:33:12,675 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:12,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:12,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:33:12,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:12,856 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 03:33:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:13,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2023-11-19 03:33:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-19 03:33:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:33:13,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:13,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:13,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:33:13,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:13,286 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 03:33:13,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:33:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:33:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:33:13,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:13,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:13,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:33:13,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:13,754 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 03:33:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2023-11-19 03:33:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2023-11-19 03:33:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:33:14,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:14,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:14,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:33:14,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2023-11-19 03:33:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2023-11-19 03:33:15,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:33:15,601 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:15,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:15,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:33:15,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 42 states and 69 transitions. [2023-11-19 03:33:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2023-11-19 03:33:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:33:17,164 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:17,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:17,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 03:33:17,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:33:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 63 transitions. [2023-11-19 03:33:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2023-11-19 03:33:17,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:33:17,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:17,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:33:17,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:17,958 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 03:33:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 45 states and 71 transitions. [2023-11-19 03:33:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 71 transitions. [2023-11-19 03:33:18,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:33:18,819 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:18,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:18,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 03:33:18,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:33:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 53 states and 87 transitions. [2023-11-19 03:33:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 87 transitions. [2023-11-19 03:33:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:33:21,401 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:21,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:21,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:33:21,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:33:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:33:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 30 states and 37 transitions. [2023-11-19 03:33:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-19 03:33:22,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:33:22,459 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-19 03:33:22,470 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:33:22,678 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:33:22,682 INFO L560 CodeCheckObserver]: Invariant with dag size 25 [2023-11-19 03:33:22,689 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:33:22,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:33:22 ImpRootNode [2023-11-19 03:33:22,692 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:33:22,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:33:22,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:33:22,693 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:33:22,694 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:33:12" (3/4) ... [2023-11-19 03:33:22,696 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:33:22,700 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:33:22,705 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 03:33:22,706 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:33:22,706 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:33:22,706 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:33:22,828 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:33:22,830 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:33:22,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:33:22,834 INFO L158 Benchmark]: Toolchain (without parser) took 11171.47ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 156.5MB in the beginning and 178.4MB in the end (delta: -21.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-19 03:33:22,834 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:33:22,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.45ms. Allocated memory is still 190.8MB. Free memory was 156.5MB in the beginning and 145.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:33:22,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.96ms. Allocated memory is still 190.8MB. Free memory was 145.6MB in the beginning and 144.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:33:22,836 INFO L158 Benchmark]: Boogie Preprocessor took 23.23ms. Allocated memory is still 190.8MB. Free memory was 144.3MB in the beginning and 143.4MB in the end (delta: 835.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:33:22,836 INFO L158 Benchmark]: RCFGBuilder took 413.55ms. Allocated memory is still 190.8MB. Free memory was 143.4MB in the beginning and 129.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:33:22,837 INFO L158 Benchmark]: CodeCheck took 10304.92ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 129.7MB in the beginning and 182.5MB in the end (delta: -52.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:33:22,841 INFO L158 Benchmark]: Witness Printer took 138.15ms. Allocated memory is still 230.7MB. Free memory was 182.5MB in the beginning and 178.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:33:22,844 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: 10.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 299 mSDsluCounter, 550 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 352 mSDsCounter, 479 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1334 IncrementalHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 479 mSolverCounterUnsat, 198 mSDtfsCounter, 1334 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1877 GetRequests, 1717 SyntacticMatches, 36 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7359 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 16 NumberOfNonLiveVariables, 588 ConjunctsInSsa, 141 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 59/115 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 0.36ms. Allocated memory is still 121.6MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.45ms. Allocated memory is still 190.8MB. Free memory was 156.5MB in the beginning and 145.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.96ms. Allocated memory is still 190.8MB. Free memory was 145.6MB in the beginning and 144.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.23ms. Allocated memory is still 190.8MB. Free memory was 144.3MB in the beginning and 143.4MB in the end (delta: 835.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.55ms. Allocated memory is still 190.8MB. Free memory was 143.4MB in the beginning and 129.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 10304.92ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 129.7MB in the beginning and 182.5MB in the end (delta: -52.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 138.15ms. Allocated memory is still 230.7MB. Free memory was 182.5MB in the beginning and 178.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:33:22,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2481ea9-62ff-4d4b-9545-d95f795f3e0f/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