./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/nec11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:45:41,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:45:42,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-08 22:45:42,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:45:42,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:45:42,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:45:42,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:45:42,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:45:42,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:45:42,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:45:42,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:45:42,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:45:42,067 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:45:42,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:45:42,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:45:42,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:45:42,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:45:42,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:45:42,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:45:42,075 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:45:42,075 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:45:42,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:45:42,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:45:42,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:45:42,076 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:45:42,076 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:45:42,077 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:45:42,077 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:45:42,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:45:42,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:45:42,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:45:42,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:45:42,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:45:42,092 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:45:42,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:45:42,093 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_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 [2024-11-08 22:45:42,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:45:42,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:45:42,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:45:42,405 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:45:42,406 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:45:42,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loops/nec11.c Unable to find full path for "g++" [2024-11-08 22:45:44,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:45:44,679 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:45:44,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/sv-benchmarks/c/loops/nec11.c [2024-11-08 22:45:44,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/data/0ede7a412/e5abdafadbee4df9a5effbc5ce23278d/FLAG9e5f4c320 [2024-11-08 22:45:44,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/data/0ede7a412/e5abdafadbee4df9a5effbc5ce23278d [2024-11-08 22:45:44,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:45:44,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:45:44,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:45:44,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:45:44,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:45:44,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:44,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf33f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44, skipping insertion in model container [2024-11-08 22:45:44,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:44,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:45:44,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:45:44,958 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:45:44,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:45:44,988 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:45:44,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44 WrapperNode [2024-11-08 22:45:44,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:45:44,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:45:44,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:45:44,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:45:44,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,020 INFO L138 Inliner]: procedures = 13, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-11-08 22:45:45,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:45:45,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:45:45,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:45:45,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:45:45,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:45:45,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:45:45,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:45:45,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:45:45,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:45:44" (1/1) ... [2024-11-08 22:45:45,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:45:45,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:45:45,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:45:45,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:45:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:45:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:45:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:45:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:45:45,164 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:45:45,166 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:45:45,294 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-08 22:45:45,295 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:45:45,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:45:45,342 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:45:45,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:45 BoogieIcfgContainer [2024-11-08 22:45:45,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:45:45,344 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:45:45,344 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:45:45,356 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:45:45,356 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:45" (1/1) ... [2024-11-08 22:45:45,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:45:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-11-08 22:45:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-08 22:45:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 22:45:45,414 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:45,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2024-11-08 22:45:45,765 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2024-11-08 22:45:45,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:45:45,766 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:45,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:45,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:45,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2024-11-08 22:45:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2024-11-08 22:45:45,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:45:45,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:45,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2024-11-08 22:45:46,451 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2024-11-08 22:45:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:45:46,455 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:46,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2024-11-08 22:45:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2024-11-08 22:45:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:45:46,864 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:46,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-08 22:45:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-08 22:45:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 22:45:47,458 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:47,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-11-08 22:45:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-11-08 22:45:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 22:45:47,851 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:47,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:45:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:48,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2024-11-08 22:45:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-11-08 22:45:48,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 22:45:48,330 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:45:48,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:45:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:45:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 22:45:48,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:45:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2024-11-08 22:45:48,867 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2024-11-08 22:45:48,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:45:48,868 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-08 22:45:48,881 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-08 22:45:49,063 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2024-11-08 22:45:49,064 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:45:49,064 INFO L77 FloydHoareUtils]: At program point L21-1(lines 21 29) the Hoare annotation is: (or (= |ULTIMATE.start_main_~len~0#1| 0) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~len~0#1| 4) (= |ULTIMATE.start_main_~len~0#1| 2) (and (< 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 3))) [2024-11-08 22:45:49,064 INFO L77 FloydHoareUtils]: At program point L21-3(lines 21 29) the Hoare annotation is: (or (= |ULTIMATE.start_main_~len~0#1| 0) (= |ULTIMATE.start_main_~len~0#1| 1) (= |ULTIMATE.start_main_~len~0#1| 4) (= |ULTIMATE.start_main_~len~0#1| 2) (and (< 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 3))) [2024-11-08 22:45:49,065 INFO L77 FloydHoareUtils]: At program point L21-4(lines 21 29) the Hoare annotation is: true [2024-11-08 22:45:49,065 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:45:49,065 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2024-11-08 22:45:49,065 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_#t~post5#1| 3) (< 2 |ULTIMATE.start_main_#t~post5#1|)) (= |ULTIMATE.start_main_#t~post5#1| 0) (and (<= |ULTIMATE.start_main_#t~post5#1| 2) (< 1 |ULTIMATE.start_main_#t~post5#1|)) (= |ULTIMATE.start_main_#t~post5#1| 1)) [2024-11-08 22:45:49,068 INFO L77 FloydHoareUtils]: At program point L28-1(line 28) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_#t~post5#1| 3) (< 2 |ULTIMATE.start_main_#t~post5#1|)) (= |ULTIMATE.start_main_#t~post5#1| 0) (and (<= |ULTIMATE.start_main_#t~post5#1| 2) (< 1 |ULTIMATE.start_main_#t~post5#1|)) (= |ULTIMATE.start_main_#t~post5#1| 1)) [2024-11-08 22:45:49,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:45:49 ImpRootNode [2024-11-08 22:45:49,090 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:45:49,090 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:45:49,091 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:45:49,091 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:45:49,091 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:45:45" (3/4) ... [2024-11-08 22:45:49,095 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:45:49,104 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-08 22:45:49,104 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 22:45:49,104 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 22:45:49,106 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:45:49,106 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:45:49,217 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:45:49,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:45:49,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:45:49,220 INFO L158 Benchmark]: Toolchain (without parser) took 4505.82ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 120.1MB in the beginning and 149.0MB in the end (delta: -28.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-08 22:45:49,220 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:45:49,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.01ms. Allocated memory is still 159.4MB. Free memory was 120.1MB in the beginning and 108.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:45:49,221 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.53ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 106.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:45:49,221 INFO L158 Benchmark]: Boogie Preprocessor took 17.93ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:45:49,226 INFO L158 Benchmark]: RCFGBuilder took 303.49ms. Allocated memory is still 159.4MB. Free memory was 105.3MB in the beginning and 93.3MB in the end (delta: 12.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:45:49,226 INFO L158 Benchmark]: CodeCheck took 3746.07ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 93.3MB in the beginning and 153.2MB in the end (delta: -59.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:45:49,227 INFO L158 Benchmark]: Witness Printer took 128.56ms. Allocated memory is still 201.3MB. Free memory was 153.2MB in the beginning and 149.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:45:49,232 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 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 232 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 174 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 174 mSolverCounterUnsat, 132 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 727 GetRequests, 643 SyntacticMatches, 30 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 5/93 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((len == 0) || (len == 1)) || (len == 4)) || (len == 2)) || ((2 < len) && (len <= 3))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.01ms. Allocated memory is still 159.4MB. Free memory was 120.1MB in the beginning and 108.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.53ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 106.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.93ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.49ms. Allocated memory is still 159.4MB. Free memory was 105.3MB in the beginning and 93.3MB in the end (delta: 12.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 3746.07ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 93.3MB in the beginning and 153.2MB in the end (delta: -59.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 128.56ms. Allocated memory is still 201.3MB. Free memory was 153.2MB in the beginning and 149.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-08 22:45:49,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b7bb6f-bf2c-42cb-bd59-d6791d02cbfa/bin/ukojak-verify-ImItNfHLgk/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