./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3 --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 66de7f8dcfecba0155136bf2ae50cf69773125ef386b1007a2b643875d1f6943 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:55:00,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:55:00,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 04:55:00,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:55:00,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:55:00,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:55:00,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:55:00,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:55:00,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:55:00,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:55:00,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:55:00,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:55:00,519 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:55:00,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:55:00,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:55:00,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:55:00,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:55:00,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:55:00,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:55:00,520 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:55:00,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:55:00,520 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:55:00,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:55:00,521 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:55:00,521 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:55:00,521 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:55:00,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:55:00,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:55:00,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:55:00,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:55:00,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:55:00,521 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:55:00,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:55:00,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3 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 -> 66de7f8dcfecba0155136bf2ae50cf69773125ef386b1007a2b643875d1f6943 [2024-11-25 04:55:00,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:55:00,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:55:00,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:55:00,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:55:00,855 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:55:00,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound2.c [2024-11-25 04:55:03,927 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/data/e9185aefc/3630731ec27848cfa952d2c904300396/FLAGb4d32a434 [2024-11-25 04:55:04,219 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:55:04,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound2.c [2024-11-25 04:55:04,233 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/data/e9185aefc/3630731ec27848cfa952d2c904300396/FLAGb4d32a434 [2024-11-25 04:55:04,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/data/e9185aefc/3630731ec27848cfa952d2c904300396 [2024-11-25 04:55:04,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:55:04,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:55:04,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:55:04,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:55:04,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:55:04,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1578a1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04, skipping insertion in model container [2024-11-25 04:55:04,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:55:04,722 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound2.c[1175,1188] [2024-11-25 04:55:04,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:55:04,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:55:04,769 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound2.c[1175,1188] [2024-11-25 04:55:04,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:55:04,790 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:55:04,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04 WrapperNode [2024-11-25 04:55:04,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:55:04,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:55:04,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:55:04,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:55:04,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,833 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2024-11-25 04:55:04,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:55:04,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:55:04,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:55:04,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:55:04,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,851 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:55:04,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:55:04,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:55:04,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:55:04,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:55:04" (1/1) ... [2024-11-25 04:55:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:55:04,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:55:04,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:55:04,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:55:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:55:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:55:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:55:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:55:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 04:55:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 04:55:05,008 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:55:05,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:55:05,182 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-25 04:55:05,183 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:55:05,287 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:55:05,289 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 04:55:05,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:55:05 BoogieIcfgContainer [2024-11-25 04:55:05,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:55:05,291 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:55:05,291 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:55:05,303 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:55:05,303 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:55:05" (1/1) ... [2024-11-25 04:55:05,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:55:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-25 04:55:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-25 04:55:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 04:55:05,380 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:05,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:55:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-25 04:55:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-25 04:55:05,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 04:55:05,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:05,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:55:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:05,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 04:55:05,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:55:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:55:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2024-11-25 04:55:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2024-11-25 04:55:06,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 04:55:06,057 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:55:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:06,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-11-25 04:55:06,557 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-11-25 04:55:06,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 04:55:06,561 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:55:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-25 04:55:06,812 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-25 04:55:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 04:55:06,813 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:06,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:55:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:06,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-25 04:55:06,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:55:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:55:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2024-11-25 04:55:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2024-11-25 04:55:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 04:55:08,669 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:08,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:55:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 32 states and 52 transitions. [2024-11-25 04:55:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 52 transitions. [2024-11-25 04:55:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-25 04:55:10,015 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:10,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:55:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:55:10,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-25 04:55:10,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:55:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 04:55:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:55:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 58 transitions. [2024-11-25 04:55:11,062 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2024-11-25 04:55:11,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-25 04:55:11,064 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:55:11,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:55:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 04:55:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:55:11,149 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:55:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:55:11,203 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-11-25 04:55:11,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:55:11 ImpRootNode [2024-11-25 04:55:11,246 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:55:11,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:55:11,247 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:55:11,248 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:55:11,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:55:05" (3/4) ... [2024-11-25 04:55:11,251 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 04:55:11,321 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 19. [2024-11-25 04:55:11,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:55:11,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:55:11,403 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:55:11,404 INFO L158 Benchmark]: Toolchain (without parser) took 6890.23ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 97.6MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-25 04:55:11,405 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:55:11,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.22ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 106.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:55:11,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.28ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:55:11,406 INFO L158 Benchmark]: Boogie Preprocessor took 32.46ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 104.1MB in the end (delta: 728.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:55:11,406 INFO L158 Benchmark]: RCFGBuilder took 422.20ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 90.7MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:55:11,407 INFO L158 Benchmark]: CodeCheck took 5955.44ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 103.3MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:55:11,408 INFO L158 Benchmark]: Witness Printer took 156.13ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 97.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:55:11,409 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 202 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 401 IncrementalHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 146 mSDtfsCounter, 401 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 736 GetRequests, 657 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 77 ConstructedInterpolants, 1 QuantifiedInterpolants, 346 SizeOfPredicates, 4 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 16/23 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int counter = 0; [L30] int a, b; [L31] long long x, y, z; [L33] a = __VERIFIER_nondet_int() [L34] b = __VERIFIER_nondet_int() [L35] CALL assume_abort_if_not(b >= 1) [L18] COND FALSE !(!cond) [L35] RET assume_abort_if_not(b >= 1) [L37] x = a [L38] y = b [L39] z = 0 VAL [a=-1, b=5, counter=0, x=-1, y=5, z=0] [L41] EXPR counter++ VAL [a=-1, b=5, counter=1, x=-1, y=5, z=0] [L41] COND TRUE counter++<2 [L42] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(cond)=1, counter=1] [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L42] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [a=-1, b=5, counter=1, x=-1, y=5, z=0] [L43] COND FALSE !(!(y != 0)) [L46] COND TRUE y % 2 == 1 [L47] z = z + x [L48] y = y - 1 [L50] x = 2 * x [L51] y = y / 2 VAL [a=-1, b=5, counter=1, x=-2, y=2, z=-1] [L41] EXPR counter++ VAL [a=-1, b=5, counter=2, x=-2, y=2, z=-1] [L41] COND TRUE counter++<2 [L42] CALL __VERIFIER_assert(z + x * y == (long long) a * b) VAL [\old(cond)=1, counter=2] [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L42] RET __VERIFIER_assert(z + x * y == (long long) a * b) VAL [a=-1, b=5, counter=2, x=-2, y=2, z=-1] [L43] COND FALSE !(!(y != 0)) [L46] COND FALSE !(y % 2 == 1) [L50] x = 2 * x [L51] y = y / 2 VAL [a=-1, b=5, counter=2, x=-4, y=1, z=-1] [L41] EXPR counter++ VAL [a=-1, b=5, counter=3, x=-4, y=1, z=-1] [L41] COND FALSE !(counter++<2) [L53] CALL __VERIFIER_assert(z == (long long) a * b) VAL [\old(cond)=0, counter=3] [L21] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L23] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.22ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 106.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.28ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.46ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 104.1MB in the end (delta: 728.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 422.20ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 90.7MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 5955.44ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 103.3MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 156.13ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 97.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 04:55:11,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d067ba4-a4f6-4115-82e3-e9dd2c7a086a/bin/ukojak-verify-ENZ3QT5qd3/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE