./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/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_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/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_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/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 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:54:04,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:54:04,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:54:04,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:54:04,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:54:04,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:54:04,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:54:04,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:54:04,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:54:04,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:54:04,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:54:04,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:54:04,474 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:54:04,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:54:04,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:54:04,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:54:04,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:54:04,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:54:04,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:54:04,480 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:54:04,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:54:04,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:54:04,482 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:54:04,482 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:54:04,484 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:54:04,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:54:04,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:54:04,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:54:04,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:54:04,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:54:04,489 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:54:04,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:54:04,490 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:54:04,490 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_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1 [2023-11-19 02:54:04,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:54:04,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:54:04,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:54:04,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:54:04,926 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:54:04,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2023-11-19 02:54:08,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:54:08,682 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:54:08,683 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2023-11-19 02:54:08,694 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/data/c3f15d48b/078a6ee3e4a248558d35e60aa1e3e244/FLAGd1454ccdd [2023-11-19 02:54:08,719 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/data/c3f15d48b/078a6ee3e4a248558d35e60aa1e3e244 [2023-11-19 02:54:08,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:54:08,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:54:08,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:54:08,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:54:08,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:54:08,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:08" (1/1) ... [2023-11-19 02:54:08,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b69e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:08, skipping insertion in model container [2023-11-19 02:54:08,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:08" (1/1) ... [2023-11-19 02:54:08,778 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:54:09,016 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_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i[951,964] [2023-11-19 02:54:09,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:54:09,061 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:54:09,084 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_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i[951,964] [2023-11-19 02:54:09,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:54:09,121 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:54:09,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09 WrapperNode [2023-11-19 02:54:09,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:54:09,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:54:09,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:54:09,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:54:09,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,170 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2023-11-19 02:54:09,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:54:09,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:54:09,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:54:09,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:54:09,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:54:09,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:54:09,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:54:09,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:54:09,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:54:09,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:54:09,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:54:09,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:54:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:54:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:54:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:54:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:54:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:54:09,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:54:09,440 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:54:09,443 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:54:09,708 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:54:09,762 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:54:09,763 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:54:09,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:09 BoogieIcfgContainer [2023-11-19 02:54:09,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:54:09,773 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:54:09,774 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:54:09,787 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:54:09,787 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:09" (1/1) ... [2023-11-19 02:54:09,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:54:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2023-11-19 02:54:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2023-11-19 02:54:09,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:54:09,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:09,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:10,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:54:10,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:54:10,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-19 02:54:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-19 02:54:10,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:54:10,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:10,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:10,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:54:10,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:54:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-19 02:54:10,376 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-19 02:54:10,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:54:10,377 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:10,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:10,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 02:54:10,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:54:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:10,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2023-11-19 02:54:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2023-11-19 02:54:11,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:54:11,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:11,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:11,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:54:11,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:54:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2023-11-19 02:54:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-11-19 02:54:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:54:11,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:11,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:11,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:54:11,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:54:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:54:12,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:12,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-11-19 02:54:12,326 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-11-19 02:54:12,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:54:12,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:12,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:12,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 02:54:12,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:54:12,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:54:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 15 states and 15 transitions. [2023-11-19 02:54:12,792 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-19 02:54:12,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:54:12,793 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-19 02:54:12,802 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:54:12,874 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:54:12,879 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:54:12,879 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2023-11-19 02:54:12,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:54:12 ImpRootNode [2023-11-19 02:54:12,883 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:54:12,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:54:12,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:54:12,884 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:54:12,885 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:09" (3/4) ... [2023-11-19 02:54:12,887 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:54:12,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 02:54:12,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 02:54:12,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:54:12,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:54:12,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:54:13,001 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:54:13,001 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:54:13,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:54:13,004 INFO L158 Benchmark]: Toolchain (without parser) took 4277.89ms. Allocated memory is still 174.1MB. Free memory was 140.1MB in the beginning and 125.1MB in the end (delta: 15.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-11-19 02:54:13,004 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:54:13,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.41ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 128.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:54:13,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.82ms. Allocated memory is still 174.1MB. Free memory was 128.9MB in the beginning and 127.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:54:13,006 INFO L158 Benchmark]: Boogie Preprocessor took 53.75ms. Allocated memory is still 174.1MB. Free memory was 127.4MB in the beginning and 126.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:54:13,006 INFO L158 Benchmark]: RCFGBuilder took 545.80ms. Allocated memory is still 174.1MB. Free memory was 126.3MB in the beginning and 114.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:54:13,007 INFO L158 Benchmark]: CodeCheck took 3109.86ms. Allocated memory is still 174.1MB. Free memory was 114.3MB in the beginning and 129.1MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:54:13,011 INFO L158 Benchmark]: Witness Printer took 118.37ms. Allocated memory is still 174.1MB. Free memory was 129.1MB in the beginning and 125.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:54:13,018 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 311 IncrementalHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 132 mSDtfsCounter, 311 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 512 GetRequests, 443 SyntacticMatches, 9 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 3 NumberOfNonLiveVariables, 286 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 4/4 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: 48]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((0 <= counter) && (q == 0)) && (A == r)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.41ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 128.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.82ms. Allocated memory is still 174.1MB. Free memory was 128.9MB in the beginning and 127.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.75ms. Allocated memory is still 174.1MB. Free memory was 127.4MB in the beginning and 126.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.80ms. Allocated memory is still 174.1MB. Free memory was 126.3MB in the beginning and 114.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3109.86ms. Allocated memory is still 174.1MB. Free memory was 114.3MB in the beginning and 129.1MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 118.37ms. Allocated memory is still 174.1MB. Free memory was 129.1MB in the beginning and 125.1MB 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 02:54:13,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0565dbe-5d62-4964-92ed-f5acdb4e3e96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE