./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 56732ec0395e0a1745d92b95f897dafd90a946c89e88e5b9fced3f4b01a9a49b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:50:08,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:50:08,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:50:08,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:50:08,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:50:08,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:50:08,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:50:08,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:50:08,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:50:08,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:50:08,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:50:08,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:50:08,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:50:08,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:50:08,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:50:08,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:50:08,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:50:08,214 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:50:08,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:50:08,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:50:08,215 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:50:08,216 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:50:08,216 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:50:08,216 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:50:08,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:50:08,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:50:08,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:50:08,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:50:08,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:50:08,220 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:50:08,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:50:08,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:50:08,221 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_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56732ec0395e0a1745d92b95f897dafd90a946c89e88e5b9fced3f4b01a9a49b [2023-11-19 02:50:08,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:50:08,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:50:08,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:50:08,525 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:50:08,527 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:50:08,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_good.i [2023-11-19 02:50:11,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:50:12,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:50:12,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_good.i [2023-11-19 02:50:12,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/data/7a3870d9b/dc43368b8f914d8eaee2c74182a6a1bf/FLAGb979e7f4a [2023-11-19 02:50:12,157 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/data/7a3870d9b/dc43368b8f914d8eaee2c74182a6a1bf [2023-11-19 02:50:12,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:50:12,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:50:12,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:50:12,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:50:12,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:50:12,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:12" (1/1) ... [2023-11-19 02:50:12,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cef4d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:12, skipping insertion in model container [2023-11-19 02:50:12,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:12" (1/1) ... [2023-11-19 02:50:12,270 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:50:12,639 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:50:13,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:50:13,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:50:13,421 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:50:13,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:50:13,718 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:13,719 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:13,719 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:13,719 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:13,719 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:50:13,727 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:50:13,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13 WrapperNode [2023-11-19 02:50:13,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:50:13,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:50:13,730 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:50:13,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:50:13,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,794 INFO L138 Inliner]: procedures = 503, calls = 73, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 119 [2023-11-19 02:50:13,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:50:13,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:50:13,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:50:13,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:50:13,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:50:13,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:50:13,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:50:13,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:50:13,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:13" (1/1) ... [2023-11-19 02:50:13,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:50:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:50:13,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:50:13,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:50:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 02:50:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 02:50:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:50:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:50:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:50:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:50:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:50:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:50:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:50:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:50:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:50:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:50:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:50:14,081 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:50:14,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:50:14,399 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:50:14,632 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:50:14,633 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:50:14,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:14 BoogieIcfgContainer [2023-11-19 02:50:14,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:50:14,639 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:50:14,639 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:50:14,649 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:50:14,649 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:14" (1/1) ... [2023-11-19 02:50:14,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:50:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-19 02:50:14,718 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-19 02:50:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:50:14,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:14,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-19 02:50:15,349 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-19 02:50:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:50:15,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:15,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:15,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:15,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-19 02:50:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-19 02:50:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:50:15,590 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:15,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-19 02:50:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-19 02:50:15,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:50:15,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:50:15,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:50:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:50:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:50:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:50:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-19 02:50:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-19 02:50:16,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:50:16,372 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-19 02:50:16,382 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-19 02:50:16,410 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:50:16,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:50:16 ImpRootNode [2023-11-19 02:50:16,415 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:50:16,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:50:16,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:50:16,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:50:16,416 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:14" (3/4) ... [2023-11-19 02:50:16,421 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:50:16,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 02:50:16,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 02:50:16,436 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2023-11-19 02:50:16,437 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 02:50:16,438 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:50:16,438 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:50:16,575 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:50:16,575 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:50:16,575 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:50:16,576 INFO L158 Benchmark]: Toolchain (without parser) took 4414.37ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 103.7MB in the beginning and 112.4MB in the end (delta: -8.8MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,577 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 86.6MB in the beginning and 86.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:50:16,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1565.05ms. Allocated memory is still 151.0MB. Free memory was 103.4MB in the beginning and 83.9MB in the end (delta: 19.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.88ms. Allocated memory is still 151.0MB. Free memory was 83.9MB in the beginning and 80.2MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,578 INFO L158 Benchmark]: Boogie Preprocessor took 52.55ms. Allocated memory is still 151.0MB. Free memory was 80.2MB in the beginning and 78.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,578 INFO L158 Benchmark]: RCFGBuilder took 789.58ms. Allocated memory is still 151.0MB. Free memory was 78.5MB in the beginning and 92.7MB in the end (delta: -14.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,579 INFO L158 Benchmark]: CodeCheck took 1776.41ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 92.7MB in the beginning and 117.6MB in the end (delta: -24.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,579 INFO L158 Benchmark]: Witness Printer took 159.89ms. Allocated memory is still 184.5MB. Free memory was 117.6MB in the beginning and 112.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:50:16,581 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: 1.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 40 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 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: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: 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: 1574]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 86.6MB in the beginning and 86.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1565.05ms. Allocated memory is still 151.0MB. Free memory was 103.4MB in the beginning and 83.9MB in the end (delta: 19.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.88ms. Allocated memory is still 151.0MB. Free memory was 83.9MB in the beginning and 80.2MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.55ms. Allocated memory is still 151.0MB. Free memory was 80.2MB in the beginning and 78.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 789.58ms. Allocated memory is still 151.0MB. Free memory was 78.5MB in the beginning and 92.7MB in the end (delta: -14.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * CodeCheck took 1776.41ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 92.7MB in the beginning and 117.6MB in the end (delta: -24.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 159.89ms. Allocated memory is still 184.5MB. Free memory was 117.6MB in the beginning and 112.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:50:16,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9286c52-48cc-42e9-96cd-82f8fa164e03/bin/ukojak-verify-G8NBE6pJGL/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