./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/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_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL --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 64bit --witnessprinter.graph.data.programhash 4f02616d206bf8428532d1d9ed1e630cd9411b3146be39f6d216548dff4d9035 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:06:15,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:06:15,350 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:06:15,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:06:15,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:06:15,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:06:15,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:06:15,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:06:15,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:06:15,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:06:15,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:06:15,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:06:15,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:06:15,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:06:15,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:06:15,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:06:15,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:06:15,416 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:06:15,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:06:15,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:06:15,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:06:15,425 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:06:15,426 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:06:15,427 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:06:15,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:06:15,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:15,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:06:15,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:06:15,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:06:15,438 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:06:15,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:06:15,440 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:06:15,441 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_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f02616d206bf8428532d1d9ed1e630cd9411b3146be39f6d216548dff4d9035 [2023-11-19 04:06:15,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:06:15,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:06:15,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:06:15,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:06:15,857 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:06:15,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_good.i [2023-11-19 04:06:19,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:06:20,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:06:20,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_22_good.i [2023-11-19 04:06:20,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/data/5fd6ea637/d341513ae3f34912a934379ffce2f6ae/FLAG9a56cab95 [2023-11-19 04:06:20,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/data/5fd6ea637/d341513ae3f34912a934379ffce2f6ae [2023-11-19 04:06:20,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:06:20,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:06:20,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:20,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:06:20,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:06:20,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:20" (1/1) ... [2023-11-19 04:06:20,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215ca329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:20, skipping insertion in model container [2023-11-19 04:06:20,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:20" (1/1) ... [2023-11-19 04:06:20,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:06:20,960 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:06:21,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:21,795 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:06:21,834 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:06:22,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:22,295 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:22,295 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:22,295 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:22,296 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:22,296 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:22,306 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:06:22,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22 WrapperNode [2023-11-19 04:06:22,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:22,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:22,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:06:22,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:06:22,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,436 INFO L138 Inliner]: procedures = 505, calls = 70, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 76 [2023-11-19 04:06:22,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:22,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:06:22,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:06:22,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:06:22,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:06:22,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:06:22,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:06:22,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:06:22,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:22" (1/1) ... [2023-11-19 04:06:22,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:22,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:06:22,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:06:22,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:06:22,568 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 04:06:22,569 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 04:06:22,571 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:06:22,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:06:22,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:06:22,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:06:22,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:06:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:06:22,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:06:22,834 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:06:22,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:06:23,028 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:06:23,104 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:06:23,105 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:06:23,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:23 BoogieIcfgContainer [2023-11-19 04:06:23,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:06:23,112 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:06:23,112 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:06:23,125 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:06:23,125 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:23" (1/1) ... [2023-11-19 04:06:23,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:06:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2023-11-19 04:06:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-11-19 04:06:23,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:06:23,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:23,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:23,518 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 04:06:23,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:23,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2023-11-19 04:06:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-11-19 04:06:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:06:23,588 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:23,784 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 04:06:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 41 transitions. [2023-11-19 04:06:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-11-19 04:06:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:06:23,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:23,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:23,900 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 04:06:24,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 38 transitions. [2023-11-19 04:06:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-19 04:06:24,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:06:24,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:24,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:24,184 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 04:06:24,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:24,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 37 transitions. [2023-11-19 04:06:24,219 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-19 04:06:24,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:06:24,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:24,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:24,307 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 04:06:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 36 transitions. [2023-11-19 04:06:24,345 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-19 04:06:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:06:24,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:24,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:24,427 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 04:06:24,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 29 transitions. [2023-11-19 04:06:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2023-11-19 04:06:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 04:06:24,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:24,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 04:06:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 28 transitions. [2023-11-19 04:06:24,678 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-19 04:06:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:06:24,679 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 04:06:24,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 27 transitions. [2023-11-19 04:06:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-19 04:06:24,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:06:24,925 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-19 04:06:24,938 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-19 04:06:24,985 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:06:24,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:06:24 ImpRootNode [2023-11-19 04:06:24,992 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:06:24,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:06:24,993 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:06:24,994 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:06:24,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:23" (3/4) ... [2023-11-19 04:06:25,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:06:25,010 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 04:06:25,011 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 04:06:25,022 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 04:06:25,023 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 04:06:25,023 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:06:25,024 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:06:25,190 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:06:25,190 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:06:25,190 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:06:25,192 INFO L158 Benchmark]: Toolchain (without parser) took 4882.19ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 130.9MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:25,192 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 111.1MB. Free memory was 59.6MB in the beginning and 59.4MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:25,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1996.37ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 112.3MB in the end (delta: 15.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2023-11-19 04:06:25,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.62ms. Allocated memory is still 174.1MB. Free memory was 112.3MB in the beginning and 109.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:06:25,193 INFO L158 Benchmark]: Boogie Preprocessor took 39.35ms. Allocated memory is still 174.1MB. Free memory was 109.6MB in the beginning and 107.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:06:25,194 INFO L158 Benchmark]: RCFGBuilder took 633.52ms. Allocated memory is still 174.1MB. Free memory was 107.6MB in the beginning and 91.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:06:25,195 INFO L158 Benchmark]: CodeCheck took 1880.40ms. Allocated memory is still 174.1MB. Free memory was 91.5MB in the beginning and 136.2MB in the end (delta: -44.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:25,195 INFO L158 Benchmark]: Witness Printer took 197.87ms. Allocated memory is still 174.1MB. Free memory was 136.2MB in the beginning and 130.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:06:25,198 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 3 procedures, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 262 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 240 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 747 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 111.1MB. Free memory was 59.6MB in the beginning and 59.4MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1996.37ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 112.3MB in the end (delta: 15.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.62ms. Allocated memory is still 174.1MB. Free memory was 112.3MB in the beginning and 109.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.35ms. Allocated memory is still 174.1MB. Free memory was 109.6MB in the beginning and 107.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.52ms. Allocated memory is still 174.1MB. Free memory was 107.6MB in the beginning and 91.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1880.40ms. Allocated memory is still 174.1MB. Free memory was 91.5MB in the beginning and 136.2MB in the end (delta: -44.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 197.87ms. Allocated memory is still 174.1MB. Free memory was 136.2MB in the beginning and 130.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 04:06:25,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b991c6e3-dbc8-4789-b161-ebfc0f1258e8/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