./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_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_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/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_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/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_83df9175-d620-461c-87ee-72634d236995/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 8a6c77f9d60c801167e12488cbdb1cb0a083b368ce7731d254f73c04ba64ccbe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:50:46,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:50:46,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:50:46,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:50:46,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:50:47,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:50:47,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:50:47,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:50:47,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:50:47,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:50:47,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:50:47,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:50:47,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:50:47,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:50:47,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:50:47,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:50:47,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:50:47,035 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:50:47,035 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:50:47,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:50:47,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:50:47,037 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:50:47,037 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:50:47,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:50:47,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:47,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:50:47,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:50:47,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:50:47,041 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:50:47,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:50:47,042 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:50:47,043 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_83df9175-d620-461c-87ee-72634d236995/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a6c77f9d60c801167e12488cbdb1cb0a083b368ce7731d254f73c04ba64ccbe [2023-11-11 23:50:47,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:50:47,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:50:47,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:50:47,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:50:47,393 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:50:47,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i [2023-11-11 23:50:50,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:50:50,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:50:50,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i [2023-11-11 23:50:50,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/data/b8852f8cb/cbf9c9c0d5464f66b3be8962a98bfeef/FLAGb70aacd20 [2023-11-11 23:50:50,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/data/b8852f8cb/cbf9c9c0d5464f66b3be8962a98bfeef [2023-11-11 23:50:50,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:50:50,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:50:50,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:50,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:50:51,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:50:51,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:50" (1/1) ... [2023-11-11 23:50:51,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a9d27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:51, skipping insertion in model container [2023-11-11 23:50:51,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:50" (1/1) ... [2023-11-11 23:50:51,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:50:51,482 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:50:52,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:52,148 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:50:52,180 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:50:52,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:52,444 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:52,457 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:52,458 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:52,458 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:52,458 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:52,466 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:50:52,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52 WrapperNode [2023-11-11 23:50:52,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:52,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:52,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:50:52,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:50:52,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,548 INFO L138 Inliner]: procedures = 505, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 124 [2023-11-11 23:50:52,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:52,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:50:52,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:50:52,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:50:52,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:50:52,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:50:52,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:50:52,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:50:52,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:52" (1/1) ... [2023-11-11 23:50:52,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:52,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:50:52,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:50:52,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:50:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:50:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:50:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:50:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:50:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:50:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:50:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:50:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-11-11 23:50:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-11-11 23:50:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2023-11-11 23:50:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2023-11-11 23:50:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:50:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:50:52,857 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:50:52,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:50:53,059 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:50:53,143 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:50:53,150 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:50:53,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:53 BoogieIcfgContainer [2023-11-11 23:50:53,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:50:53,156 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:50:53,156 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:50:53,164 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:50:53,165 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:53" (1/1) ... [2023-11-11 23:50:53,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:50:53,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 69 states and 89 transitions. [2023-11-11 23:50:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2023-11-11 23:50:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:50:53,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,708 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 23:50:53,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:53,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 63 states and 81 transitions. [2023-11-11 23:50:53,815 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2023-11-11 23:50:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-11 23:50:53,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:53,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-11 23:50:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 62 states and 78 transitions. [2023-11-11 23:50:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2023-11-11 23:50:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-11 23:50:54,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:54,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:54,281 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:50:54,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:54,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 56 states and 70 transitions. [2023-11-11 23:50:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2023-11-11 23:50:54,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-11 23:50:54,417 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:54,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-11 23:50:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:54,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 56 states and 69 transitions. [2023-11-11 23:50:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2023-11-11 23:50:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-11 23:50:54,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:54,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:54,963 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-11 23:50:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 60 states and 76 transitions. [2023-11-11 23:50:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2023-11-11 23:50:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-11 23:50:55,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:55,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-11 23:50:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 65 states and 84 transitions. [2023-11-11 23:50:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2023-11-11 23:50:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-11 23:50:55,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:55,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-11 23:50:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:55,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 53 states and 64 transitions. [2023-11-11 23:50:55,744 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2023-11-11 23:50:55,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-11 23:50:55,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:55,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:55,869 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-11 23:50:56,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 53 states and 63 transitions. [2023-11-11 23:50:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2023-11-11 23:50:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-11 23:50:56,117 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-11 23:50:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 52 states and 62 transitions. [2023-11-11 23:50:56,563 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2023-11-11 23:50:56,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-11 23:50:56,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:56,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-11 23:50:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 51 states and 61 transitions. [2023-11-11 23:50:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2023-11-11 23:50:57,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:50:57,169 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-11 23:50:57,182 INFO L753 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-11 23:50:57,338 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:50:57,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:50:57 ImpRootNode [2023-11-11 23:50:57,343 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:50:57,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:50:57,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:50:57,344 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:50:57,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:53" (3/4) ... [2023-11-11 23:50:57,347 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:50:57,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:50:57,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2023-11-11 23:50:57,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:50:57,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2023-11-11 23:50:57,358 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-11 23:50:57,358 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-11 23:50:57,359 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:50:57,359 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:50:57,485 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:50:57,488 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:50:57,488 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:50:57,489 INFO L158 Benchmark]: Toolchain (without parser) took 6492.98ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 113.8MB in the beginning and 109.3MB in the end (delta: 4.5MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-11 23:50:57,489 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:57,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1470.14ms. Allocated memory is still 146.8MB. Free memory was 113.5MB in the beginning and 96.3MB in the end (delta: 17.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2023-11-11 23:50:57,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.36ms. Allocated memory is still 146.8MB. Free memory was 96.3MB in the beginning and 93.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:57,492 INFO L158 Benchmark]: Boogie Preprocessor took 43.82ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 91.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:57,493 INFO L158 Benchmark]: RCFGBuilder took 560.79ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 72.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-11 23:50:57,493 INFO L158 Benchmark]: CodeCheck took 4187.28ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 72.9MB in the beginning and 115.5MB in the end (delta: -42.6MB). Peak memory consumption was 294.5kB. Max. memory is 16.1GB. [2023-11-11 23:50:57,493 INFO L158 Benchmark]: Witness Printer took 144.10ms. Allocated memory is still 186.6MB. Free memory was 115.5MB in the beginning and 109.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:50:57,496 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 5 procedures, 69 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1373 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 1000 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 275 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 753 IncrementalHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 275 mSolverCounterUnsat, 866 mSDtfsCounter, 753 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2931 GetRequests, 2873 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 206/212 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: 1572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: 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 8 specifications checked. All of them hold - InvariantResult [Line: 1654]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1470.14ms. Allocated memory is still 146.8MB. Free memory was 113.5MB in the beginning and 96.3MB in the end (delta: 17.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.36ms. Allocated memory is still 146.8MB. Free memory was 96.3MB in the beginning and 93.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.82ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 91.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 560.79ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 72.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 4187.28ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 72.9MB in the beginning and 115.5MB in the end (delta: -42.6MB). Peak memory consumption was 294.5kB. Max. memory is 16.1GB. * Witness Printer took 144.10ms. Allocated memory is still 186.6MB. Free memory was 115.5MB in the beginning and 109.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:50:57,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83df9175-d620-461c-87ee-72634d236995/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