./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_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_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/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_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/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_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/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 f797f7560f2d6968129c886a722f9d52cd41e157726d25a985e72ae8caba1f76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:01:12,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:01:12,612 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-12 00:01:12,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:01:12,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:01:12,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:01:12,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:01:12,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:01:12,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:01:12,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:01:12,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:01:12,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:01:12,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:01:12,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:01:12,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:01:12,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:01:12,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:01:12,675 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:01:12,676 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:01:12,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:01:12,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:01:12,677 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:01:12,678 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:01:12,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:01:12,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:01:12,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:01:12,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:01:12,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:01:12,680 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:01:12,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:01:12,682 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:01:12,682 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_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f797f7560f2d6968129c886a722f9d52cd41e157726d25a985e72ae8caba1f76 [2023-11-12 00:01:12,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:01:12,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:01:13,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:01:13,003 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:01:13,005 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:01:13,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i [2023-11-12 00:01:16,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:01:16,603 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:01:16,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i [2023-11-12 00:01:16,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/data/ab7799b17/d2789f49037446359beed37835a18ff5/FLAG37fef96e9 [2023-11-12 00:01:16,660 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/data/ab7799b17/d2789f49037446359beed37835a18ff5 [2023-11-12 00:01:16,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:01:16,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:01:16,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:01:16,666 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:01:16,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:01:16,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:01:16" (1/1) ... [2023-11-12 00:01:16,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456e27d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:16, skipping insertion in model container [2023-11-12 00:01:16,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:01:16" (1/1) ... [2023-11-12 00:01:16,742 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:01:17,172 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:01:17,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:01:17,767 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:01:17,798 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:01:17,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:01:18,144 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:01:18,144 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:01:18,145 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:01:18,145 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:01:18,145 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:01:18,145 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:01:18,153 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:01:18,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18 WrapperNode [2023-11-12 00:01:18,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:01:18,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:01:18,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:01:18,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:01:18,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,242 INFO L138 Inliner]: procedures = 506, calls = 86, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 117 [2023-11-12 00:01:18,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:01:18,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:01:18,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:01:18,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:01:18,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:01:18,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:01:18,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:01:18,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:01:18,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:01:18,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:01:18,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:01:18,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:01:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-12 00:01:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-12 00:01:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-12 00:01:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:01:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:01:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:01:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:01:18,578 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:01:18,580 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:01:18,816 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:01:18,869 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:01:18,869 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:01:18,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:01:18 BoogieIcfgContainer [2023-11-12 00:01:18,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:01:18,873 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:01:18,873 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:01:18,885 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:01:18,885 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:01:18" (1/1) ... [2023-11-12 00:01:18,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:01:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 59 transitions. [2023-11-12 00:01:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2023-11-12 00:01:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:01:18,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:19,450 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 00:01:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:19,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-12 00:01:19,567 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-12 00:01:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:01:19,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:19,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:19,635 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 00:01:19,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 48 states and 64 transitions. [2023-11-12 00:01:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-11-12 00:01:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:01:19,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:19,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:19,810 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 00:01:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 43 states and 57 transitions. [2023-11-12 00:01:19,886 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2023-11-12 00:01:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:01:19,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:20,008 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 00:01:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 42 states and 54 transitions. [2023-11-12 00:01:20,134 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2023-11-12 00:01:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:01:20,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:20,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:20,322 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 00:01:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 60 transitions. [2023-11-12 00:01:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2023-11-12 00:01:20,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:01:20,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:20,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:20,490 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 00:01:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 46 states and 59 transitions. [2023-11-12 00:01:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2023-11-12 00:01:20,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:01:20,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:20,694 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 00:01:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 58 transitions. [2023-11-12 00:01:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2023-11-12 00:01:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:01:20,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:20,928 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 00:01:21,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 51 transitions. [2023-11-12 00:01:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2023-11-12 00:01:21,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:01:21,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:21,126 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 00:01:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 39 states and 50 transitions. [2023-11-12 00:01:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2023-11-12 00:01:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 00:01:21,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:21,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:21,283 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 00:01:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 49 transitions. [2023-11-12 00:01:21,300 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2023-11-12 00:01:21,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:01:21,306 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-12 00:01:21,315 INFO L753 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-12 00:01:21,406 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:01:21,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:01:21 ImpRootNode [2023-11-12 00:01:21,410 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:01:21,411 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:01:21,411 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:01:21,411 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:01:21,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:01:18" (3/4) ... [2023-11-12 00:01:21,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:01:21,417 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-12 00:01:21,417 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-12 00:01:21,422 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-12 00:01:21,423 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 00:01:21,423 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:01:21,424 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:01:21,424 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:01:21,531 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:01:21,531 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-12 00:01:21,531 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:01:21,532 INFO L158 Benchmark]: Toolchain (without parser) took 4867.87ms. Allocated memory is still 199.2MB. Free memory was 148.8MB in the beginning and 121.5MB in the end (delta: 27.3MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,532 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:01:21,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1488.94ms. Allocated memory is still 199.2MB. Free memory was 148.8MB in the beginning and 153.4MB in the end (delta: -4.5MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.51ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 150.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,533 INFO L158 Benchmark]: Boogie Preprocessor took 65.28ms. Allocated memory is still 199.2MB. Free memory was 150.2MB in the beginning and 148.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,534 INFO L158 Benchmark]: RCFGBuilder took 562.61ms. Allocated memory is still 199.2MB. Free memory was 148.1MB in the beginning and 129.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,534 INFO L158 Benchmark]: CodeCheck took 2537.46ms. Allocated memory is still 199.2MB. Free memory was 129.2MB in the beginning and 126.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,535 INFO L158 Benchmark]: Witness Printer took 120.43ms. Allocated memory is still 199.2MB. Free memory was 126.8MB in the beginning and 121.5MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:01:21,537 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, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 629 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 471 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 381 mSDtfsCounter, 464 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1379 GetRequests, 1333 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 28/28 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 1609]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1488.94ms. Allocated memory is still 199.2MB. Free memory was 148.8MB in the beginning and 153.4MB in the end (delta: -4.5MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.51ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 150.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.28ms. Allocated memory is still 199.2MB. Free memory was 150.2MB in the beginning and 148.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.61ms. Allocated memory is still 199.2MB. Free memory was 148.1MB in the beginning and 129.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2537.46ms. Allocated memory is still 199.2MB. Free memory was 129.2MB in the beginning and 126.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 120.43ms. Allocated memory is still 199.2MB. Free memory was 126.8MB in the beginning and 121.5MB 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! [2023-11-12 00:01:21,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0bd43cd-897f-44d7-968b-ddb6604ca8d2/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