./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9 --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 8043da58ee1e76f1fff95f0a046d686c6b8b6d8e25d68a19985e51892dbd8b42 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:55:44,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:55:44,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 02:55:44,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:55:44,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:55:44,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:55:44,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:55:44,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:55:44,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:55:44,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:55:44,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:55:44,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:55:44,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:55:44,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:55:44,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:55:44,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:55:44,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:55:44,915 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:55:44,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:55:44,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:55:44,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:55:44,918 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:55:44,918 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:55:44,919 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:55:44,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:55:44,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:55:44,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:55:44,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:55:44,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:55:44,921 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:55:44,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:55:44,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:55:44,922 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_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8043da58ee1e76f1fff95f0a046d686c6b8b6d8e25d68a19985e51892dbd8b42 [2023-12-03 02:55:45,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:55:45,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:55:45,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:55:45,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:55:45,147 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:55:45,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_good.i [2023-12-03 02:55:47,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:55:48,185 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:55:48,186 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_good.i [2023-12-03 02:55:48,207 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/data/58e9fb7ce/beada2ba7ccf445782c9e878f9dcd47e/FLAG0280cefcd [2023-12-03 02:55:48,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/data/58e9fb7ce/beada2ba7ccf445782c9e878f9dcd47e [2023-12-03 02:55:48,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:55:48,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:55:48,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:55:48,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:55:48,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:55:48,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:55:48" (1/1) ... [2023-12-03 02:55:48,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be3a437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:48, skipping insertion in model container [2023-12-03 02:55:48,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:55:48" (1/1) ... [2023-12-03 02:55:48,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:55:49,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:55:49,066 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:55:49,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:55:49,244 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:55:49,244 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:55:49,244 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:55:49,244 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:55:49,244 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:55:49,250 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:55:49,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49 WrapperNode [2023-12-03 02:55:49,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:55:49,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:55:49,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:55:49,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:55:49,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,312 INFO L138 Inliner]: procedures = 505, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 121 [2023-12-03 02:55:49,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:55:49,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:55:49,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:55:49,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:55:49,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:55:49,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:55:49,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:55:49,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:55:49,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:55:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:55:49,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:55:49,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:55:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 02:55:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 02:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 02:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:55:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:55:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 02:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:55:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:55:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:55:49,567 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:55:49,569 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:55:49,751 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:55:49,793 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:55:49,793 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:55:49,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:55:49 BoogieIcfgContainer [2023-12-03 02:55:49,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:55:49,796 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:55:49,796 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:55:49,804 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:55:49,804 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:55:49" (1/1) ... [2023-12-03 02:55:49,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:55:49,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2023-12-03 02:55:49,858 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2023-12-03 02:55:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:55:49,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:49,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 49 states and 63 transitions. [2023-12-03 02:55:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2023-12-03 02:55:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 02:55:50,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:50,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 54 states and 70 transitions. [2023-12-03 02:55:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2023-12-03 02:55:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 02:55:50,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:50,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:50,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 48 states and 62 transitions. [2023-12-03 02:55:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-12-03 02:55:50,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 02:55:50,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 46 states and 58 transitions. [2023-12-03 02:55:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-12-03 02:55:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:55:50,712 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:50,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 45 states and 57 transitions. [2023-12-03 02:55:50,807 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2023-12-03 02:55:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:55:50,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:50,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 45 states and 56 transitions. [2023-12-03 02:55:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-12-03 02:55:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:55:50,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:50,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 50 states and 62 transitions. [2023-12-03 02:55:51,264 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-12-03 02:55:51,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:55:51,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:51,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:55:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 44 states and 55 transitions. [2023-12-03 02:55:51,462 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-12-03 02:55:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:55:51,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:51,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:55:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 43 states and 54 transitions. [2023-12-03 02:55:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2023-12-03 02:55:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:55:51,595 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:51,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:55:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:55:51,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 53 transitions. [2023-12-03 02:55:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-12-03 02:55:51,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 02:55:51,801 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-12-03 02:55:51,809 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-12-03 02:55:51,883 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:55:51,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:55:51 ImpRootNode [2023-12-03 02:55:51,888 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:55:51,888 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:55:51,888 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:55:51,888 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:55:51,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:55:49" (3/4) ... [2023-12-03 02:55:51,890 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 02:55:51,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 02:55:51,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 02:55:51,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-12-03 02:55:51,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-03 02:55:51,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 02:55:51,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:55:51,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:55:51,987 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:55:51,987 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 02:55:51,987 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:55:51,988 INFO L158 Benchmark]: Toolchain (without parser) took 3762.69ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 76.8MB in the beginning and 82.0MB in the end (delta: -5.2MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,989 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 127.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:55:51,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1023.95ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 76.8MB in the beginning and 113.5MB in the end (delta: -36.7MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.36ms. Allocated memory is still 197.1MB. Free memory was 113.5MB in the beginning and 110.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,990 INFO L158 Benchmark]: Boogie Preprocessor took 30.51ms. Allocated memory is still 197.1MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,991 INFO L158 Benchmark]: RCFGBuilder took 450.42ms. Allocated memory is still 197.1MB. Free memory was 108.3MB in the beginning and 89.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,991 INFO L158 Benchmark]: CodeCheck took 2091.97ms. Allocated memory is still 197.1MB. Free memory was 89.5MB in the beginning and 88.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,991 INFO L158 Benchmark]: Witness Printer took 99.37ms. Allocated memory is still 197.1MB. Free memory was 88.3MB in the beginning and 82.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-03 02:55:51,993 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, 50 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 748 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 570 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 161 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 161 mSolverCounterUnsat, 463 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1416 GetRequests, 1364 SyntacticMatches, 10 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 28/28 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: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1640]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1640]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1654]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1654]: 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: 1609]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 127.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1023.95ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 76.8MB in the beginning and 113.5MB in the end (delta: -36.7MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.36ms. Allocated memory is still 197.1MB. Free memory was 113.5MB in the beginning and 110.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.51ms. Allocated memory is still 197.1MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.42ms. Allocated memory is still 197.1MB. Free memory was 108.3MB in the beginning and 89.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2091.97ms. Allocated memory is still 197.1MB. Free memory was 89.5MB in the beginning and 88.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 99.37ms. Allocated memory is still 197.1MB. Free memory was 88.3MB in the beginning and 82.0MB 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! [2023-12-03 02:55:52,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e780c5d-765b-4a9c-a17f-70c16a0d6e32/bin/ukojak-verify-Qdu7aM0XO9/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