./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV --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 2c65e78917c0fd627fd8159debc82800691878cfd15a4326b1124b570f0ed54a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:49:49,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:49:49,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:49:49,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:49:49,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:49:49,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:49:49,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:49:49,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:49:49,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:49:49,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:49:49,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:49:49,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:49:49,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:49:49,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:49:49,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:49:49,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:49:49,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:49:49,333 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:49:49,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:49:49,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:49:49,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:49:49,336 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:49:49,337 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:49:49,337 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:49:49,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:49:49,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:49:49,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:49:49,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:49:49,340 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:49:49,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:49:49,342 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:49:49,342 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_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c65e78917c0fd627fd8159debc82800691878cfd15a4326b1124b570f0ed54a [2023-11-11 23:49:49,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:49:49,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:49:49,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:49:49,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:49:49,748 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:49:49,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_good.i [2023-11-11 23:49:52,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:49:53,212 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:49:53,213 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_good.i [2023-11-11 23:49:53,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/data/44b6a08e6/5693ee68f507488782b93f07de32f905/FLAG60b5e5022 [2023-11-11 23:49:53,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/data/44b6a08e6/5693ee68f507488782b93f07de32f905 [2023-11-11 23:49:53,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:49:53,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:49:53,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:49:53,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:49:53,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:49:53,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:49:53" (1/1) ... [2023-11-11 23:49:53,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b358db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:53, skipping insertion in model container [2023-11-11 23:49:53,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:49:53" (1/1) ... [2023-11-11 23:49:53,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:49:53,834 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:49:54,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:49:54,435 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:49:54,476 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:49:54,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:49:54,737 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:54,739 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:54,739 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:54,739 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:54,739 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:54,747 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:49:54,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54 WrapperNode [2023-11-11 23:49:54,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:49:54,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:49:54,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:49:54,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:49:54,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,836 INFO L138 Inliner]: procedures = 503, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 131 [2023-11-11 23:49:54,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:49:54,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:49:54,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:49:54,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:49:54,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:49:54,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:49:54,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:49:54,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:49:54,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:54" (1/1) ... [2023-11-11 23:49:54,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:49:54,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:49:54,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:49:54,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:49:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:49:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:49:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:49:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:49:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:49:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:49:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:49:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:49:54,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:49:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:49:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:49:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:49:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:49:55,198 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:49:55,200 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:49:55,493 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:49:55,758 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:49:55,758 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:49:55,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:49:55 BoogieIcfgContainer [2023-11-11 23:49:55,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:49:55,762 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:49:55,763 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:49:55,773 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:49:55,774 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:49:55" (1/1) ... [2023-11-11 23:49:55,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:49:55,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-11 23:49:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-11 23:49:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:49:55,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:55,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:49:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-11 23:49:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-11 23:49:56,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:49:56,362 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:56,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:49:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-11 23:49:56,639 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-11 23:49:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:49:56,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:49:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-11 23:49:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-11 23:49:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:49:56,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:56,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:49:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-11 23:49:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-11 23:49:57,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:49:57,392 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-11 23:49:57,402 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:49:57,430 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:49:57,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:49:57 ImpRootNode [2023-11-11 23:49:57,435 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:49:57,437 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:49:57,437 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:49:57,437 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:49:57,438 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:49:55" (3/4) ... [2023-11-11 23:49:57,442 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:49:57,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:49:57,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:49:57,457 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2023-11-11 23:49:57,458 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-11 23:49:57,458 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:49:57,459 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:49:57,583 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:49:57,584 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:49:57,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:49:57,584 INFO L158 Benchmark]: Toolchain (without parser) took 4296.45ms. Allocated memory is still 178.3MB. Free memory was 149.1MB in the beginning and 65.9MB in the end (delta: 83.3MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,585 INFO L158 Benchmark]: CDTParser took 1.62ms. Allocated memory is still 134.2MB. Free memory was 109.3MB in the beginning and 109.3MB in the end (delta: 79.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:49:57,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1457.28ms. Allocated memory is still 178.3MB. Free memory was 148.9MB in the beginning and 88.8MB in the end (delta: 60.1MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.17ms. Allocated memory is still 178.3MB. Free memory was 88.8MB in the beginning and 85.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,586 INFO L158 Benchmark]: Boogie Preprocessor took 36.33ms. Allocated memory is still 178.3MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,586 INFO L158 Benchmark]: RCFGBuilder took 886.68ms. Allocated memory is still 178.3MB. Free memory was 83.8MB in the beginning and 109.0MB in the end (delta: -25.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,587 INFO L158 Benchmark]: CodeCheck took 1672.75ms. Allocated memory is still 178.3MB. Free memory was 109.0MB in the beginning and 71.1MB in the end (delta: 37.8MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,587 INFO L158 Benchmark]: Witness Printer took 147.10ms. Allocated memory is still 178.3MB. Free memory was 71.1MB in the beginning and 65.9MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:49:57,589 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 40 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s 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: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: 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: 1582]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.62ms. Allocated memory is still 134.2MB. Free memory was 109.3MB in the beginning and 109.3MB in the end (delta: 79.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1457.28ms. Allocated memory is still 178.3MB. Free memory was 148.9MB in the beginning and 88.8MB in the end (delta: 60.1MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.17ms. Allocated memory is still 178.3MB. Free memory was 88.8MB in the beginning and 85.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.33ms. Allocated memory is still 178.3MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 886.68ms. Allocated memory is still 178.3MB. Free memory was 83.8MB in the beginning and 109.0MB in the end (delta: -25.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1672.75ms. Allocated memory is still 178.3MB. Free memory was 109.0MB in the beginning and 71.1MB in the end (delta: 37.8MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Witness Printer took 147.10ms. Allocated memory is still 178.3MB. Free memory was 71.1MB in the beginning and 65.9MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:49:57,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8d9a89-751f-4aeb-9870-ca7802b1e437/bin/ukojak-verify-0OAaufAVZV/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