./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/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_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/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_766ce6f2-e149-4dcd-9428-91c2575196c0/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 f99aed1a2681d32cb6221672a76e642596876480d047e3b6425ea1e67927d04e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:06:53,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:06:53,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-12 00:06:53,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:06:53,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:06:53,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:06:53,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:06:53,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:06:53,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:06:53,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:06:53,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:06:53,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:06:53,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:06:53,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:06:53,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:06:53,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:06:53,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:06:53,680 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:06:53,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:06:53,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:06:53,681 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:06:53,681 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:06:53,682 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:06:53,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:06:53,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:06:53,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:06:53,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:06:53,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:06:53,685 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:06:53,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:06:53,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:06:53,686 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_766ce6f2-e149-4dcd-9428-91c2575196c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f99aed1a2681d32cb6221672a76e642596876480d047e3b6425ea1e67927d04e [2023-11-12 00:06:53,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:06:54,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:06:54,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:06:54,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:06:54,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:06:54,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i [2023-11-12 00:06:57,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:06:57,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:06:57,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i [2023-11-12 00:06:57,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/data/7e5991827/e2004903985b40b3a65faf0806074fe6/FLAGd676495dd [2023-11-12 00:06:57,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/data/7e5991827/e2004903985b40b3a65faf0806074fe6 [2023-11-12 00:06:57,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:06:57,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:06:57,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:06:57,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:06:57,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:06:57,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:06:57" (1/1) ... [2023-11-12 00:06:57,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1881b927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:57, skipping insertion in model container [2023-11-12 00:06:57,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:06:57" (1/1) ... [2023-11-12 00:06:57,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:06:58,128 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:06:58,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:06:58,720 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:06:58,741 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:06:58,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:06:59,019 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:06:59,020 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:06:59,020 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:06:59,020 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:06:59,021 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:06:59,029 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:06:59,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59 WrapperNode [2023-11-12 00:06:59,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:06:59,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:06:59,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:06:59,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:06:59,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,129 INFO L138 Inliner]: procedures = 505, calls = 80, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 101 [2023-11-12 00:06:59,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:06:59,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:06:59,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:06:59,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:06:59,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:06:59,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:06:59,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:06:59,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:06:59,172 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:06:59,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:06:59,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:06:59,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:06:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-12 00:06:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-12 00:06:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:06:59,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:06:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:06:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:06:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:06:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:06:59,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:06:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:06:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:06:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:06:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:06:59,419 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:06:59,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:06:59,610 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:06:59,709 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:06:59,712 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:06:59,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:06:59 BoogieIcfgContainer [2023-11-12 00:06:59,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:06:59,717 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:06:59,717 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:06:59,729 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:06:59,729 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:06:59" (1/1) ... [2023-11-12 00:06:59,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:06:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:06:59,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2023-11-12 00:06:59,807 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-11-12 00:06:59,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:06:59,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:06:59,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:06:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:07:00,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2023-11-12 00:07:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-11-12 00:07:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:07:00,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:00,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:07:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:00,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 37 states and 47 transitions. [2023-11-12 00:07:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2023-11-12 00:07:00,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:07:00,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:00,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:07:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:00,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 44 transitions. [2023-11-12 00:07:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-11-12 00:07:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:07:00,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:00,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:07:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 43 transitions. [2023-11-12 00:07:00,906 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2023-11-12 00:07:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:07:00,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:07:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 42 transitions. [2023-11-12 00:07:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-12 00:07:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:07:01,017 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:01,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:07:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 41 transitions. [2023-11-12 00:07:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-11-12 00:07:01,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:07:01,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:01,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:07:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:01,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 40 transitions. [2023-11-12 00:07:01,512 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-12 00:07:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:07:01,513 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:01,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:07:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:01,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 39 transitions. [2023-11-12 00:07:01,753 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-12 00:07:01,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:07:01,754 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-12 00:07:01,766 INFO L753 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-12 00:07:01,816 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:07:01,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:07:01 ImpRootNode [2023-11-12 00:07:01,821 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:07:01,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:07:01,822 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:07:01,822 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:07:01,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:06:59" (3/4) ... [2023-11-12 00:07:01,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:07:01,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-12 00:07:01,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-12 00:07:01,840 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-12 00:07:01,841 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 00:07:01,841 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:07:01,842 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:07:01,969 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:07:01,970 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-12 00:07:01,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:07:01,974 INFO L158 Benchmark]: Toolchain (without parser) took 4357.05ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 96.8MB in the beginning and 140.6MB in the end (delta: -43.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-12 00:07:01,975 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:07:01,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1410.45ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 96.8MB in the beginning and 144.5MB in the end (delta: -47.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-12 00:07:01,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.57ms. Allocated memory is still 197.1MB. Free memory was 144.5MB in the beginning and 141.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:07:01,979 INFO L158 Benchmark]: Boogie Preprocessor took 39.90ms. Allocated memory is still 197.1MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:07:01,979 INFO L158 Benchmark]: RCFGBuilder took 544.86ms. Allocated memory is still 197.1MB. Free memory was 139.2MB in the beginning and 120.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:07:01,980 INFO L158 Benchmark]: CodeCheck took 2104.37ms. Allocated memory is still 197.1MB. Free memory was 120.4MB in the beginning and 145.8MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:07:01,980 INFO L158 Benchmark]: Witness Printer took 149.59ms. Allocated memory is still 197.1MB. Free memory was 145.8MB in the beginning and 140.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:07:01,982 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, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 242 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 264 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 220 mSDtfsCounter, 264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 769 GetRequests, 739 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: 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: 1589]: 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 148.9MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1410.45ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 96.8MB in the beginning and 144.5MB in the end (delta: -47.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.57ms. Allocated memory is still 197.1MB. Free memory was 144.5MB in the beginning and 141.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.90ms. Allocated memory is still 197.1MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.86ms. Allocated memory is still 197.1MB. Free memory was 139.2MB in the beginning and 120.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2104.37ms. Allocated memory is still 197.1MB. Free memory was 120.4MB in the beginning and 145.8MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 149.59ms. Allocated memory is still 197.1MB. Free memory was 145.8MB in the beginning and 140.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-12 00:07:02,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_766ce6f2-e149-4dcd-9428-91c2575196c0/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