./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC --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 ddcbfb80540d1b7578649e9f00a309187045345ec2e6b6299a1acc28c4ace396 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:03:57,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:03:58,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:03:58,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:03:58,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:03:58,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:03:58,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:03:58,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:03:58,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:03:58,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:03:58,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:03:58,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:03:58,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:03:58,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:03:58,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:03:58,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:03:58,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:03:58,113 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:03:58,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:03:58,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:03:58,115 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:03:58,116 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:03:58,117 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:03:58,118 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:03:58,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:03:58,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:03:58,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:03:58,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:03:58,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:03:58,121 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:03:58,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:03:58,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:03:58,123 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_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddcbfb80540d1b7578649e9f00a309187045345ec2e6b6299a1acc28c4ace396 [2023-11-23 20:03:58,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:03:58,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:03:58,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:03:58,591 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:03:58,592 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:03:58,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_good.i [2023-11-23 20:04:01,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:04:02,387 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:04:02,393 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_good.i [2023-11-23 20:04:02,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/data/8b9ad9b4d/6f99b19dd00145b3b990e19efca43536/FLAGa06fcc4f1 [2023-11-23 20:04:02,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/data/8b9ad9b4d/6f99b19dd00145b3b990e19efca43536 [2023-11-23 20:04:02,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:04:02,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:04:02,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:02,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:04:02,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:04:02,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:02" (1/1) ... [2023-11-23 20:04:02,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85f75fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:02, skipping insertion in model container [2023-11-23 20:04:02,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:02" (1/1) ... [2023-11-23 20:04:02,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:04:02,970 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:04:03,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:03,678 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:04:03,716 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:04:03,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:04,054 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:04:04,054 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:04:04,054 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:04:04,055 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:04:04,055 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:04:04,063 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:04:04,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04 WrapperNode [2023-11-23 20:04:04,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:04,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:04,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:04:04,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:04:04,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,139 INFO L138 Inliner]: procedures = 503, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 120 [2023-11-23 20:04:04,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:04,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:04:04,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:04:04,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:04:04,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:04:04,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:04:04,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:04:04,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:04:04,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:04" (1/1) ... [2023-11-23 20:04:04,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:04,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:04:04,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:04:04,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:04:04,288 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:04:04,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:04:04,288 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:04:04,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:04:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:04:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:04:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:04:04,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:04:04,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:04:04,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:04:04,290 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:04:04,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:04:04,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:04:04,517 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:04:04,520 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:04:04,884 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:04:05,145 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:04:05,145 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:04:05,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:05 BoogieIcfgContainer [2023-11-23 20:04:05,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:04:05,149 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:04:05,149 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:04:05,161 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:04:05,162 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:05" (1/1) ... [2023-11-23 20:04:05,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:04:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-23 20:04:05,235 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-23 20:04:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:04:05,241 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:05,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-23 20:04:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-23 20:04:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:04:05,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-23 20:04:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-23 20:04:06,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:04:06,122 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:06,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-23 20:04:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-23 20:04:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:04:06,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:06,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:07,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-23 20:04:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-23 20:04:07,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:04:07,487 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-23 20:04:07,497 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:04:07,528 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:04:07,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:04:07 ImpRootNode [2023-11-23 20:04:07,534 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:04:07,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:04:07,536 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:04:07,536 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:04:07,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:05" (3/4) ... [2023-11-23 20:04:07,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:04:07,542 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:04:07,543 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:04:07,551 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2023-11-23 20:04:07,552 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 20:04:07,552 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:04:07,553 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:04:07,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:04:07,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:04:07,689 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:04:07,690 INFO L158 Benchmark]: Toolchain (without parser) took 5233.57ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 88.6MB in the beginning and 72.0MB in the end (delta: 16.5MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,691 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:07,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1604.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 88.2MB in the beginning and 98.8MB in the end (delta: -10.7MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.09ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 95.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,692 INFO L158 Benchmark]: Boogie Preprocessor took 43.02ms. Allocated memory is still 161.5MB. Free memory was 95.9MB in the beginning and 93.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,692 INFO L158 Benchmark]: RCFGBuilder took 962.85ms. Allocated memory is still 161.5MB. Free memory was 93.4MB in the beginning and 110.9MB in the end (delta: -17.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,693 INFO L158 Benchmark]: CodeCheck took 2385.09ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 110.9MB in the beginning and 78.3MB in the end (delta: 32.6MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,693 INFO L158 Benchmark]: Witness Printer took 153.66ms. Allocated memory is still 195.0MB. Free memory was 78.3MB in the beginning and 72.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:04:07,695 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 40 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1595]: 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: 1578]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1604.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 88.2MB in the beginning and 98.8MB in the end (delta: -10.7MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.09ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 95.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.02ms. Allocated memory is still 161.5MB. Free memory was 95.9MB in the beginning and 93.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 962.85ms. Allocated memory is still 161.5MB. Free memory was 93.4MB in the beginning and 110.9MB in the end (delta: -17.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * CodeCheck took 2385.09ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 110.9MB in the beginning and 78.3MB in the end (delta: 32.6MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Witness Printer took 153.66ms. Allocated memory is still 195.0MB. Free memory was 78.3MB in the beginning and 72.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:04:07,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4218924-0dc3-4906-8b2f-e6c4b736d823/bin/ukojak-verify-1t5iHCbJaC/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