./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_09_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_09_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC --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 cef9e7357e5866cfee2e0786275c055313fe702817c3f9b7dc153adbf9242644 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:24:40,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:24:40,300 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:24:40,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:24:40,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:24:40,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:24:40,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:24:40,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:24:40,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:24:40,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:24:40,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:24:40,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:24:40,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:24:40,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:24:40,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:24:40,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:24:40,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:24:40,359 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:24:40,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:24:40,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:24:40,362 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:24:40,363 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:24:40,364 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:24:40,365 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:24:40,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:24:40,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:40,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:24:40,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:24:40,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:24:40,370 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:24:40,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:24:40,371 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:24:40,372 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_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef9e7357e5866cfee2e0786275c055313fe702817c3f9b7dc153adbf9242644 [2023-11-23 20:24:40,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:24:40,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:24:40,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:24:40,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:24:40,785 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:24:40,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_09_good.i [2023-11-23 20:24:44,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:24:44,838 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:24:44,841 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_09_good.i [2023-11-23 20:24:44,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/data/515518247/bbf8017c361e4c6d8731df7a88ebbc13/FLAGadd38320f [2023-11-23 20:24:44,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/data/515518247/bbf8017c361e4c6d8731df7a88ebbc13 [2023-11-23 20:24:44,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:24:44,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:24:44,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:44,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:24:44,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:24:44,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:44" (1/1) ... [2023-11-23 20:24:44,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60696822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:44, skipping insertion in model container [2023-11-23 20:24:44,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:44" (1/1) ... [2023-11-23 20:24:45,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:24:45,502 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:46,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:46,167 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:24:46,202 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:46,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:46,470 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:46,471 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:46,472 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:46,472 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:46,472 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:46,481 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:24:46,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46 WrapperNode [2023-11-23 20:24:46,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:46,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:46,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:24:46,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:24:46,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,583 INFO L138 Inliner]: procedures = 503, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 79 [2023-11-23 20:24:46,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:46,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:24:46,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:24:46,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:24:46,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:24:46,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:24:46,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:24:46,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:24:46,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:46" (1/1) ... [2023-11-23 20:24:46,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:46,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:24:46,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:24:46,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:24:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:24:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:24:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:24:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:24:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:24:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:24:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:24:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:24:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:24:46,950 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:24:46,953 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:24:47,224 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:24:47,281 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:24:47,281 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:24:47,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:47 BoogieIcfgContainer [2023-11-23 20:24:47,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:24:47,284 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:24:47,284 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:24:47,293 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:24:47,293 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:47" (1/1) ... [2023-11-23 20:24:47,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:24:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:47,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 49 states and 63 transitions. [2023-11-23 20:24:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2023-11-23 20:24:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:24:47,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:24:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 48 states and 62 transitions. [2023-11-23 20:24:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-11-23 20:24:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:24:47,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:24:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 47 states and 61 transitions. [2023-11-23 20:24:48,017 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-11-23 20:24:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:24:48,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:48,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:24:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 46 states and 58 transitions. [2023-11-23 20:24:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-23 20:24:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:24:48,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:48,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:24:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 57 transitions. [2023-11-23 20:24:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2023-11-23 20:24:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:24:48,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:48,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:24:48,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:48,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 40 states and 50 transitions. [2023-11-23 20:24:48,481 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2023-11-23 20:24:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:24:48,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:24:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 53 transitions. [2023-11-23 20:24:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-23 20:24:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:24:49,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:24:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:49,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 44 states and 57 transitions. [2023-11-23 20:24:49,258 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2023-11-23 20:24:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:24:49,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:49,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:24:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 47 states and 62 transitions. [2023-11-23 20:24:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2023-11-23 20:24:49,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:24:49,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:49,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:24:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 53 states and 71 transitions. [2023-11-23 20:24:49,995 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2023-11-23 20:24:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:24:49,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:49,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:24:50,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:50,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 56 states and 74 transitions. [2023-11-23 20:24:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2023-11-23 20:24:50,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:24:50,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:50,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:24:50,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 33 states and 37 transitions. [2023-11-23 20:24:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-23 20:24:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:24:50,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:24:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 32 states and 36 transitions. [2023-11-23 20:24:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-23 20:24:51,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:24:51,132 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:24:51,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 31 states and 35 transitions. [2023-11-23 20:24:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-23 20:24:51,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:24:51,402 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2023-11-23 20:24:51,416 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-23 20:24:51,635 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:24:51,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:24:51 ImpRootNode [2023-11-23 20:24:51,640 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:24:51,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:24:51,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:24:51,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:24:51,642 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:47" (3/4) ... [2023-11-23 20:24:51,644 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:24:51,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:24:51,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:24:51,653 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-23 20:24:51,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-23 20:24:51,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:24:51,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:24:51,765 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:24:51,766 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:24:51,766 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:24:51,767 INFO L158 Benchmark]: Toolchain (without parser) took 6865.06ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 152.4MB in the beginning and 138.2MB in the end (delta: 14.2MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,767 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 192.9MB. Free memory is still 163.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:51,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1579.48ms. Allocated memory is still 192.9MB. Free memory was 151.9MB in the beginning and 88.0MB in the end (delta: 63.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.35ms. Allocated memory is still 192.9MB. Free memory was 88.0MB in the beginning and 155.9MB in the end (delta: -67.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,769 INFO L158 Benchmark]: Boogie Preprocessor took 60.42ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 155.8MB in the beginning and 208.5MB in the end (delta: -52.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,769 INFO L158 Benchmark]: RCFGBuilder took 635.04ms. Allocated memory is still 243.3MB. Free memory was 208.5MB in the beginning and 191.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,770 INFO L158 Benchmark]: CodeCheck took 4356.39ms. Allocated memory is still 243.3MB. Free memory was 191.7MB in the beginning and 143.4MB in the end (delta: 48.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,770 INFO L158 Benchmark]: Witness Printer took 125.54ms. Allocated memory is still 243.3MB. Free memory was 143.4MB in the beginning and 138.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:24:51,772 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, 49 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1219 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 337 mSDsluCounter, 865 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 204 mSDsCounter, 295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1063 IncrementalHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 295 mSolverCounterUnsat, 661 mSDtfsCounter, 1063 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1975 GetRequests, 1894 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2465 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 52/52 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: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: 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: 1625]: 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: 1642]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 192.9MB. Free memory is still 163.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1579.48ms. Allocated memory is still 192.9MB. Free memory was 151.9MB in the beginning and 88.0MB in the end (delta: 63.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.35ms. Allocated memory is still 192.9MB. Free memory was 88.0MB in the beginning and 155.9MB in the end (delta: -67.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.42ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 155.8MB in the beginning and 208.5MB in the end (delta: -52.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 635.04ms. Allocated memory is still 243.3MB. Free memory was 208.5MB in the beginning and 191.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4356.39ms. Allocated memory is still 243.3MB. Free memory was 191.7MB in the beginning and 143.4MB in the end (delta: 48.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 125.54ms. Allocated memory is still 243.3MB. Free memory was 143.4MB in the beginning and 138.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:24:51,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c72add5f-7921-4711-849f-ce27355392d9/bin/ukojak-verify-1t5iHCbJaC/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