./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi --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 d929aa7bcd2a44ead1b8717a92f971e5f5d30472bc7f5adfbdd096a88b0dbff7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:45,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:45,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:17:45,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:17:45,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:17:45,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:45,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:45,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:45,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:45,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:45,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:45,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:45,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:17:45,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:45,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:45,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:45,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:45,373 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:17:45,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:17:45,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:45,374 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:45,375 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:45,376 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:45,376 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:45,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:45,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:45,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:45,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:45,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:45,379 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:17:45,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:17:45,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:45,381 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_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d929aa7bcd2a44ead1b8717a92f971e5f5d30472bc7f5adfbdd096a88b0dbff7 [2023-11-24 22:17:45,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:45,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:45,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:45,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:45,745 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:45,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_good.i [2023-11-24 22:17:48,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:49,221 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:49,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_02_good.i [2023-11-24 22:17:49,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/data/9585faa74/a4fb393e054048ae995f23bf35e9a714/FLAG7e5b503a5 [2023-11-24 22:17:49,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/data/9585faa74/a4fb393e054048ae995f23bf35e9a714 [2023-11-24 22:17:49,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:49,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:49,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:49,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:49,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:49,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:49" (1/1) ... [2023-11-24 22:17:49,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4fe3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:49, skipping insertion in model container [2023-11-24 22:17:49,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:49" (1/1) ... [2023-11-24 22:17:49,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:50,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:50,536 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:50,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:50,834 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:50,835 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:50,835 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:50,835 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:50,835 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:50,843 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:50,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50 WrapperNode [2023-11-24 22:17:50,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:50,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:50,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:50,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:50,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:50,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:50,952 INFO L138 Inliner]: procedures = 503, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 127 [2023-11-24 22:17:50,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:50,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:50,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:50,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:50,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:50,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:50,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:50,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:51,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:51,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:51,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:51,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:51,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:51,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:51,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:51,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:51,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:50" (1/1) ... [2023-11-24 22:17:51,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:51,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:51,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:51,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 22:17:51,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 22:17:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 22:17:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:17:51,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:17:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:17:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 22:17:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:51,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:17:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:17:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:17:51,335 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:51,337 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:51,540 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:51,606 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:51,607 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-24 22:17:51,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:51 BoogieIcfgContainer [2023-11-24 22:17:51,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:51,612 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:51,612 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:51,622 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:51,622 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:51" (1/1) ... [2023-11-24 22:17:51,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:51,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 60 states and 80 transitions. [2023-11-24 22:17:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2023-11-24 22:17:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:17:51,716 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:51,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 58 states and 75 transitions. [2023-11-24 22:17:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2023-11-24 22:17:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:17:52,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:52,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 57 states and 74 transitions. [2023-11-24 22:17:52,210 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2023-11-24 22:17:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:17:52,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 80 transitions. [2023-11-24 22:17:52,458 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2023-11-24 22:17:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:17:52,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:17:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 56 states and 73 transitions. [2023-11-24 22:17:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2023-11-24 22:17:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:17:52,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:17:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 56 states and 71 transitions. [2023-11-24 22:17:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2023-11-24 22:17:52,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:17:52,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:17:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 55 states and 70 transitions. [2023-11-24 22:17:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-24 22:17:52,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 22:17:52,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:17:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 59 states and 75 transitions. [2023-11-24 22:17:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-11-24 22:17:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:17:52,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:52,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:17:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 54 states and 69 transitions. [2023-11-24 22:17:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2023-11-24 22:17:53,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 22:17:53,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:53,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:17:53,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 51 states and 63 transitions. [2023-11-24 22:17:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2023-11-24 22:17:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 22:17:53,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:17:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 50 states and 62 transitions. [2023-11-24 22:17:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-11-24 22:17:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:17:53,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:53,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:17:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:53,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 49 states and 60 transitions. [2023-11-24 22:17:53,629 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-11-24 22:17:53,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 22:17:53,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:53,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:17:53,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:53,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 48 states and 59 transitions. [2023-11-24 22:17:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2023-11-24 22:17:53,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:17:53,815 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2023-11-24 22:17:53,825 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-24 22:17:53,900 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:17:53,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:53 ImpRootNode [2023-11-24 22:17:53,905 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:53,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:53,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:53,906 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:53,907 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:51" (3/4) ... [2023-11-24 22:17:53,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:17:53,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 22:17:53,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 22:17:53,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-24 22:17:53,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 22:17:53,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 22:17:53,925 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:17:53,926 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:17:54,070 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:17:54,073 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:17:54,073 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:54,074 INFO L158 Benchmark]: Toolchain (without parser) took 4802.23ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 114.2MB in the beginning and 133.1MB in the end (delta: -18.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-11-24 22:17:54,074 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:54,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1571.37ms. Allocated memory is still 148.9MB. Free memory was 114.2MB in the beginning and 101.5MB in the end (delta: 12.7MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-24 22:17:54,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.29ms. Allocated memory is still 148.9MB. Free memory was 101.5MB in the beginning and 98.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:17:54,076 INFO L158 Benchmark]: Boogie Preprocessor took 70.32ms. Allocated memory is still 148.9MB. Free memory was 98.2MB in the beginning and 96.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:54,076 INFO L158 Benchmark]: RCFGBuilder took 582.44ms. Allocated memory is still 148.9MB. Free memory was 96.9MB in the beginning and 77.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:17:54,077 INFO L158 Benchmark]: CodeCheck took 2293.58ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 77.3MB in the beginning and 139.3MB in the end (delta: -62.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:54,077 INFO L158 Benchmark]: Witness Printer took 167.35ms. Allocated memory is still 180.4MB. Free memory was 139.3MB in the beginning and 133.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:17:54,079 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, 60 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1036 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 816 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 620 mSDtfsCounter, 420 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1873 GetRequests, 1836 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 38/38 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: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1571.37ms. Allocated memory is still 148.9MB. Free memory was 114.2MB in the beginning and 101.5MB in the end (delta: 12.7MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.29ms. Allocated memory is still 148.9MB. Free memory was 101.5MB in the beginning and 98.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.32ms. Allocated memory is still 148.9MB. Free memory was 98.2MB in the beginning and 96.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.44ms. Allocated memory is still 148.9MB. Free memory was 96.9MB in the beginning and 77.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2293.58ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 77.3MB in the beginning and 139.3MB in the end (delta: -62.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 167.35ms. Allocated memory is still 180.4MB. Free memory was 139.3MB in the beginning and 133.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:17:54,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1701a4f-7dfc-4a1f-a837-ca27ccdd709c/bin/ukojak-verify-afCqCEvfdi/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