./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2 --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 0ff06313c85074f5b14d885a8651cc5358eb0d923759ff849107fa9c244bd1b7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:32:03,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:32:03,820 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:32:03,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:32:03,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:32:03,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:32:03,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:32:03,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:32:03,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:32:03,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:32:03,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:32:03,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:32:03,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:32:03,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:32:03,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:32:03,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:32:03,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:32:03,892 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:32:03,892 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:32:03,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:32:03,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:32:03,894 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:32:03,895 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:32:03,895 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:32:03,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:32:03,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:03,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:32:03,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:32:03,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:32:03,899 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:32:03,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:32:03,900 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:32:03,901 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_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ff06313c85074f5b14d885a8651cc5358eb0d923759ff849107fa9c244bd1b7 [2023-11-21 18:32:04,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:32:04,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:32:04,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:32:04,297 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:32:04,298 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:32:04,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i [2023-11-21 18:32:07,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:32:07,997 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:32:07,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i [2023-11-21 18:32:08,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data/18aa7c129/8a0a242478a04765bbf46ff8a0e5b904/FLAG6de5b79bf [2023-11-21 18:32:08,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data/18aa7c129/8a0a242478a04765bbf46ff8a0e5b904 [2023-11-21 18:32:08,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:32:08,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:32:08,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:08,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:32:08,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:32:08,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:08" (1/1) ... [2023-11-21 18:32:08,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a38664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:08, skipping insertion in model container [2023-11-21 18:32:08,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:08" (1/1) ... [2023-11-21 18:32:08,188 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:32:08,576 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:32:09,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:09,277 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:32:09,310 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:32:09,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:09,536 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:09,536 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:09,537 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:09,537 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:09,537 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:09,545 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:32:09,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09 WrapperNode [2023-11-21 18:32:09,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:09,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:09,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:32:09,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:32:09,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,667 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 108 [2023-11-21 18:32:09,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:09,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:32:09,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:32:09,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:32:09,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:32:09,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:32:09,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:32:09,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:32:09,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:09" (1/1) ... [2023-11-21 18:32:09,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:09,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:32:09,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:32:09,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:32:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:32:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:32:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:32:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:32:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:32:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:32:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:32:09,953 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:32:09,955 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:32:10,267 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:32:10,500 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:32:10,501 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:32:10,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:10 BoogieIcfgContainer [2023-11-21 18:32:10,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:32:10,504 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:32:10,504 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:32:10,516 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:32:10,516 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:10" (1/1) ... [2023-11-21 18:32:10,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:32:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-21 18:32:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-21 18:32:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:32:10,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2023-11-21 18:32:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-21 18:32:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:32:11,578 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:11,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2023-11-21 18:32:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-11-21 18:32:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:32:12,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:12,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2023-11-21 18:32:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-21 18:32:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:32:12,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:12,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:12,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:32:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:12,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:32:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:12,876 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-21 18:32:12,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:32:12 ImpRootNode [2023-11-21 18:32:12,929 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:32:12,930 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:32:12,930 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:32:12,930 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:32:12,931 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:10" (3/4) ... [2023-11-21 18:32:12,933 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:32:12,935 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:32:12,936 INFO L158 Benchmark]: Toolchain (without parser) took 4830.07ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 119.4MB in the beginning and 121.8MB in the end (delta: -2.4MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-21 18:32:12,938 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:12,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1436.86ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 108.7MB in the end (delta: 10.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2023-11-21 18:32:12,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.84ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 105.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:12,941 INFO L158 Benchmark]: Boogie Preprocessor took 39.23ms. Allocated memory is still 151.0MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:12,942 INFO L158 Benchmark]: RCFGBuilder took 794.30ms. Allocated memory is still 151.0MB. Free memory was 103.6MB in the beginning and 65.9MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-21 18:32:12,947 INFO L158 Benchmark]: CodeCheck took 2425.41ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 65.9MB in the beginning and 122.9MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:12,949 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 182.5MB. Free memory was 122.9MB in the beginning and 121.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:12,959 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 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 15 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 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 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_rand_multiply_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1555] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1557] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1557] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1559] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1561] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1436.86ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 108.7MB in the end (delta: 10.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.84ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 105.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.23ms. Allocated memory is still 151.0MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.30ms. Allocated memory is still 151.0MB. Free memory was 103.6MB in the beginning and 65.9MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 2425.41ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 65.9MB in the beginning and 122.9MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 182.5MB. Free memory was 122.9MB in the beginning and 121.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:32:13,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2 --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 0ff06313c85074f5b14d885a8651cc5358eb0d923759ff849107fa9c244bd1b7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:32:15,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:32:15,976 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:32:16,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:32:16,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:32:16,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:32:16,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:32:16,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:32:16,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:32:16,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:32:16,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:32:16,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:32:16,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:32:16,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:32:16,048 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:32:16,049 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:32:16,049 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:32:16,050 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:32:16,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:32:16,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:32:16,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:32:16,053 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:32:16,053 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:32:16,054 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:32:16,054 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:32:16,054 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:32:16,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:32:16,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:16,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:32:16,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:32:16,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:32:16,058 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:32:16,058 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:32:16,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:32:16,059 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:32:16,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:32:16,060 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ff06313c85074f5b14d885a8651cc5358eb0d923759ff849107fa9c244bd1b7 [2023-11-21 18:32:16,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:32:16,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:32:16,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:32:16,533 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:32:16,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:32:16,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i [2023-11-21 18:32:19,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:32:20,268 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:32:20,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_17_bad.i [2023-11-21 18:32:20,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data/d5f715526/56b76659d59042c1bf148ecb586a19e8/FLAG2b5720110 [2023-11-21 18:32:20,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/data/d5f715526/56b76659d59042c1bf148ecb586a19e8 [2023-11-21 18:32:20,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:32:20,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:32:20,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:20,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:32:20,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:32:20,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:20" (1/1) ... [2023-11-21 18:32:20,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22839263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:20, skipping insertion in model container [2023-11-21 18:32:20,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:20" (1/1) ... [2023-11-21 18:32:20,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:32:20,977 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:32:21,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:21,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:32:21,717 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:32:21,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:22,004 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:22,004 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:22,004 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:22,005 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:22,005 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:32:22,013 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:32:22,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22 WrapperNode [2023-11-21 18:32:22,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:22,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:22,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:32:22,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:32:22,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,085 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-11-21 18:32:22,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:22,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:32:22,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:32:22,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:32:22,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:32:22,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:32:22,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:32:22,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:32:22,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:32:22,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:32:22,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:32:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:32:22,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:32:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:32:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:32:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:32:22,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:32:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:32:22,401 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:32:22,409 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:32:22,647 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:32:22,751 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:32:22,752 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:32:22,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:22 BoogieIcfgContainer [2023-11-21 18:32:22,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:32:22,754 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:32:22,755 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:32:22,763 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:32:22,763 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:22" (1/1) ... [2023-11-21 18:32:22,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:32:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-21 18:32:22,831 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-21 18:32:22,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:32:22,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:22,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:32:22,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:32:22,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:32:22,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:32:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:22,999 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:32:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:23,054 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:32:23,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:32:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-21 18:32:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-21 18:32:23,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:32:23,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,087 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:32:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:32:23,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:32:23,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:32:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,249 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:32:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:23,356 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:32:23,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:32:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2023-11-21 18:32:23,451 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-21 18:32:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:32:23,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,452 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:32:23,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:32:23,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:32:23,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:32:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,641 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:32:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:23,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:32:23,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:32:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:23,718 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:32:23,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-21 18:32:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2023-11-21 18:32:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-21 18:32:23,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:32:23,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:23,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:32:23,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:32:23,797 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:32:23,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:32:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:23,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:32:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:24,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:32:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:32:24,146 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:32:24,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:32:24,153 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-21 18:32:24,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:32:24 ImpRootNode [2023-11-21 18:32:24,205 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:32:24,207 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:32:24,208 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:32:24,208 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:32:24,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:22" (3/4) ... [2023-11-21 18:32:24,210 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:32:24,294 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:32:24,303 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:32:24,305 INFO L158 Benchmark]: Toolchain (without parser) took 3980.74ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 37.8MB in the end (delta: 10.2MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,306 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 58.7MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 65.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:24,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1688.47ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.8MB in the beginning and 53.3MB in the end (delta: -5.5MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.22ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 49.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,307 INFO L158 Benchmark]: Boogie Preprocessor took 40.17ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,307 INFO L158 Benchmark]: RCFGBuilder took 626.68ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 52.3MB in the end (delta: -4.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,308 INFO L158 Benchmark]: CodeCheck took 1451.24ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 40.2MB in the end (delta: 12.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,308 INFO L158 Benchmark]: Witness Printer took 96.99ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 37.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:24,311 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 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 21 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 2 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/3 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 - CounterExampleResult [Line: 1561]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_rand_multiply_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1557] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1557] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1559] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1561] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 58.7MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 65.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1688.47ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.8MB in the beginning and 53.3MB in the end (delta: -5.5MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.22ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 49.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.17ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.68ms. Allocated memory is still 92.3MB. Free memory was 47.8MB in the beginning and 52.3MB in the end (delta: -4.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * CodeCheck took 1451.24ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 40.2MB in the end (delta: 12.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 96.99ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 37.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:32:24,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_785f8cd1-72e9-4438-a0ea-f660ac7b027f/bin/ukojak-verify-i0I2FZA1j2/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)