./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 21:36:24,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:36:24,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:36:24,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:36:24,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:36:24,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:36:24,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:36:24,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:36:24,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:36:24,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:36:24,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:36:24,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:36:24,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:36:24,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:36:24,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:36:24,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:36:24,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:36:24,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:36:24,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:36:24,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:36:24,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:36:24,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:36:24,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:36:24,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:36:24,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:36:24,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:36:24,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:36:24,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:36:24,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:36:24,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:36:24,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:36:24,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:36:24,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:36:24,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:36:24,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:36:24,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:36:24,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:36:24,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:36:24,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:36:24,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:36:24,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:36:24,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 21:36:24,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:36:24,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:36:24,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:36:24,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:36:24,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:36:24,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:36:24,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:36:24,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:36:24,399 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 21:36:24,399 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:36:24,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:36:24,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:36:24,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:36:24,399 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:36:24,399 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:36:24,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:36:24,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:36:24,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:36:24,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:36:24,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:36:24,400 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:36:24,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:36:24,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:36:24,401 INFO L138 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_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb [2022-12-14 21:36:24,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:36:24,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:36:24,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:36:24,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:36:24,585 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:36:24,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/bitvector/gcd_2.c [2022-12-14 21:36:27,215 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:36:27,356 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:36:27,356 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/sv-benchmarks/c/bitvector/gcd_2.c [2022-12-14 21:36:27,360 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/data/1c40478e7/fb8b3e6f9e5a4d8980ac0e9f21999e2a/FLAG836354bcf [2022-12-14 21:36:27,371 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/data/1c40478e7/fb8b3e6f9e5a4d8980ac0e9f21999e2a [2022-12-14 21:36:27,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:36:27,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:36:27,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:36:27,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:36:27,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:36:27,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f446144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27, skipping insertion in model container [2022-12-14 21:36:27,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:36:27,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:36:27,505 WARN L237 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_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2022-12-14 21:36:27,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:36:27,525 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:36:27,535 WARN L237 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_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2022-12-14 21:36:27,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:36:27,550 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:36:27,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27 WrapperNode [2022-12-14 21:36:27,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:36:27,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:36:27,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:36:27,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:36:27,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,575 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 21:36:27,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:36:27,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:36:27,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:36:27,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:36:27,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:36:27,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:36:27,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:36:27,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:36:27,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:36:27,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:36:27,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:36:27,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:36:27,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 21:36:27,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 21:36:27,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:36:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:36:27,715 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:36:27,716 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:36:27,805 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:36:27,835 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:36:27,835 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 21:36:27,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:36:27 BoogieIcfgContainer [2022-12-14 21:36:27,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:36:27,837 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:36:27,837 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:36:27,844 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:36:27,845 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:36:27" (1/1) ... [2022-12-14 21:36:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:36:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:36:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-12-14 21:36:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 21:36:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 21:36:27,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:36:27,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:36:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:36:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:36:28,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:36:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-12-14 21:36:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-12-14 21:36:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:36:28,025 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:36:28,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:36:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:36:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:36:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:36:28,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-12-14 21:36:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-14 21:36:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:36:28,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:36:28,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:36:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:36:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:36:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:36:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2022-12-14 21:36:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-12-14 21:36:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 21:36:28,192 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:36:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:36:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:36:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:36:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:36:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-12-14 21:36:28,375 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-12-14 21:36:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 21:36:28,375 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:36:28,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:36:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:36:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:36:28,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:36:28,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-12-14 21:36:28,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-12-14 21:36:28,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 21:36:28,501 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 21:36:28,509 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 21:36:28,528 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:36:28,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:36:28 ImpRootNode [2022-12-14 21:36:28,532 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:36:28,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:36:28,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:36:28,533 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:36:28,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:36:27" (3/4) ... [2022-12-14 21:36:28,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 21:36:28,543 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 21:36:28,543 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 21:36:28,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 21:36:28,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 21:36:28,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 21:36:28,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:36:28,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:36:28,574 INFO L158 Benchmark]: Toolchain (without parser) took 1198.57ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 105.7MB in the beginning and 131.2MB in the end (delta: -25.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-12-14 21:36:28,574 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory was 119.2MB in the beginning and 119.1MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:36:28,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.86ms. Allocated memory is still 146.8MB. Free memory was 105.7MB in the beginning and 95.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:36:28,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.87ms. Allocated memory is still 146.8MB. Free memory was 95.2MB in the beginning and 93.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:36:28,575 INFO L158 Benchmark]: Boogie Preprocessor took 16.56ms. Allocated memory is still 146.8MB. Free memory was 93.5MB in the beginning and 92.5MB in the end (delta: 990.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:36:28,575 INFO L158 Benchmark]: RCFGBuilder took 242.89ms. Allocated memory is still 146.8MB. Free memory was 92.5MB in the beginning and 79.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 21:36:28,576 INFO L158 Benchmark]: CodeCheck took 695.43ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 79.4MB in the beginning and 133.2MB in the end (delta: -53.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:36:28,576 INFO L158 Benchmark]: Witness Printer took 39.80ms. Allocated memory is still 176.2MB. Free memory was 133.2MB in the beginning and 131.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:36:28,577 INFO L339 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 16 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory was 119.2MB in the beginning and 119.1MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.86ms. Allocated memory is still 146.8MB. Free memory was 105.7MB in the beginning and 95.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.87ms. Allocated memory is still 146.8MB. Free memory was 95.2MB in the beginning and 93.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.56ms. Allocated memory is still 146.8MB. Free memory was 93.5MB in the beginning and 92.5MB in the end (delta: 990.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.89ms. Allocated memory is still 146.8MB. Free memory was 92.5MB in the beginning and 79.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 695.43ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 79.4MB in the beginning and 133.2MB in the end (delta: -53.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.80ms. Allocated memory is still 176.2MB. Free memory was 133.2MB in the beginning and 131.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 21:36:28,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b5cd5f-f9d5-49ca-b8f7-1a932248cab1/bin/ukojak-rkRKPMF4O4/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