./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL --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 f644a2cdae868a08ecb4d209b2e1fdb545a23f6a1ce392143eaae3f854527299 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:37:47,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:37:47,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:37:47,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:37:47,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:37:47,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:37:47,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:37:47,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:37:47,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:37:47,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:37:47,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:37:47,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:37:47,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:37:47,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:37:47,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:37:47,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:37:47,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:37:47,980 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:37:47,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:37:47,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:37:47,982 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:37:47,982 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:37:47,983 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:37:47,983 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:37:47,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:37:47,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:47,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:37:47,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:37:47,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:37:47,986 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:37:47,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:37:47,988 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:37:47,988 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_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f644a2cdae868a08ecb4d209b2e1fdb545a23f6a1ce392143eaae3f854527299 [2023-11-19 02:37:48,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:37:48,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:37:48,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:37:48,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:37:48,264 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:37:48,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_22_good.i [2023-11-19 02:37:51,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:37:51,734 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:37:51,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_22_good.i [2023-11-19 02:37:51,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/data/3ed12c370/99429e6d63ff4bc0bbffa236e334a539/FLAGfe1925f53 [2023-11-19 02:37:51,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/data/3ed12c370/99429e6d63ff4bc0bbffa236e334a539 [2023-11-19 02:37:51,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:37:51,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:37:51,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:37:51,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:37:51,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:37:51,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:51" (1/1) ... [2023-11-19 02:37:51,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e82880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:51, skipping insertion in model container [2023-11-19 02:37:51,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:51" (1/1) ... [2023-11-19 02:37:51,881 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:37:52,271 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:37:52,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:37:52,816 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:37:52,838 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:37:52,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:37:53,177 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:37:53,178 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:37:53,178 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:37:53,178 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:37:53,178 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:37:53,186 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:37:53,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53 WrapperNode [2023-11-19 02:37:53,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:37:53,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:37:53,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:37:53,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:37:53,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,304 INFO L138 Inliner]: procedures = 505, calls = 70, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 85 [2023-11-19 02:37:53,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:37:53,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:37:53,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:37:53,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:37:53,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:37:53,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:37:53,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:37:53,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:37:53,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:37:53,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:37:53,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:37:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 02:37:53,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 02:37:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:37:53,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:37:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:37:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:37:53,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:37:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:37:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:37:53,680 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:37:53,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:37:53,852 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:37:53,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:37:53,919 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:37:53,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:53 BoogieIcfgContainer [2023-11-19 02:37:53,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:37:53,926 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:37:53,926 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:37:53,936 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:37:53,937 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:53" (1/1) ... [2023-11-19 02:37:53,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:37:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2023-11-19 02:37:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-11-19 02:37:54,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:37:54,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:54,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2023-11-19 02:37:54,320 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-11-19 02:37:54,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:37:54,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 41 transitions. [2023-11-19 02:37:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-11-19 02:37:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:37:54,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:37:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 38 transitions. [2023-11-19 02:37:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-19 02:37:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:37:54,730 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:37:54,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 37 transitions. [2023-11-19 02:37:54,866 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-19 02:37:54,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:37:54,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:37:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 36 transitions. [2023-11-19 02:37:54,985 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-19 02:37:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:37:54,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:54,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:37:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 29 transitions. [2023-11-19 02:37:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2023-11-19 02:37:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:37:55,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:37:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 28 transitions. [2023-11-19 02:37:55,322 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-19 02:37:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:37:55,323 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:55,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:37:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 27 transitions. [2023-11-19 02:37:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-19 02:37:55,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:37:55,543 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-19 02:37:55,555 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-19 02:37:55,602 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:37:55,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:37:55 ImpRootNode [2023-11-19 02:37:55,607 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:37:55,608 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:37:55,608 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:37:55,608 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:37:55,609 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:53" (3/4) ... [2023-11-19 02:37:55,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:37:55,619 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 02:37:55,620 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 02:37:55,631 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 02:37:55,631 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 02:37:55,631 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:37:55,632 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:37:55,744 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:37:55,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:37:55,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:37:55,746 INFO L158 Benchmark]: Toolchain (without parser) took 3952.68ms. Allocated memory was 176.2MB in the beginning and 243.3MB in the end (delta: 67.1MB). Free memory was 124.3MB in the beginning and 176.5MB in the end (delta: -52.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,746 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:37:55,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1390.96ms. Allocated memory was 176.2MB in the beginning and 243.3MB in the end (delta: 67.1MB). Free memory was 124.0MB in the beginning and 195.0MB in the end (delta: -71.0MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.23ms. Allocated memory is still 243.3MB. Free memory was 195.0MB in the beginning and 191.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,748 INFO L158 Benchmark]: Boogie Preprocessor took 65.83ms. Allocated memory is still 243.3MB. Free memory was 191.8MB in the beginning and 189.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,748 INFO L158 Benchmark]: RCFGBuilder took 552.33ms. Allocated memory is still 243.3MB. Free memory was 189.7MB in the beginning and 172.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,748 INFO L158 Benchmark]: CodeCheck took 1681.58ms. Allocated memory is still 243.3MB. Free memory was 172.9MB in the beginning and 181.8MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:37:55,749 INFO L158 Benchmark]: Witness Printer took 137.38ms. Allocated memory is still 243.3MB. Free memory was 181.8MB in the beginning and 176.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:37:55,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 262 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 240 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 747 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1390.96ms. Allocated memory was 176.2MB in the beginning and 243.3MB in the end (delta: 67.1MB). Free memory was 124.0MB in the beginning and 195.0MB in the end (delta: -71.0MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.23ms. Allocated memory is still 243.3MB. Free memory was 195.0MB in the beginning and 191.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.83ms. Allocated memory is still 243.3MB. Free memory was 191.8MB in the beginning and 189.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.33ms. Allocated memory is still 243.3MB. Free memory was 189.7MB in the beginning and 172.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1681.58ms. Allocated memory is still 243.3MB. Free memory was 172.9MB in the beginning and 181.8MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 137.38ms. Allocated memory is still 243.3MB. Free memory was 181.8MB in the beginning and 176.5MB 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! [2023-11-19 02:37:55,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f074b36-217d-4b7f-85ed-071f3bf3c108/bin/ukojak-verify-G8NBE6pJGL/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