./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 863b78be26a1f5bbd051736740a2d1ea653229cdc463152f37e9b5da9b567772 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:41:08,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:41:08,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:41:08,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:41:08,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:41:08,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:41:08,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:41:08,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:41:08,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:41:08,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:41:08,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:41:08,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:41:08,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:41:08,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:41:08,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:41:08,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:41:08,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:41:08,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:41:08,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:41:08,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:41:08,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:41:08,961 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:41:08,962 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:41:08,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:41:08,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:41:08,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:41:08,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:41:08,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:41:08,965 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:41:08,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:41:08,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:41:08,966 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_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863b78be26a1f5bbd051736740a2d1ea653229cdc463152f37e9b5da9b567772 [2023-11-11 23:41:09,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:41:09,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:41:09,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:41:09,269 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:41:09,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:41:09,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_08_good.i [2023-11-11 23:41:12,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:41:13,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:41:13,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_multiply_08_good.i [2023-11-11 23:41:13,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/data/a4e6c3b14/cdd32622bcaa4237bcefd40400888869/FLAG1d03fcc62 [2023-11-11 23:41:13,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/data/a4e6c3b14/cdd32622bcaa4237bcefd40400888869 [2023-11-11 23:41:13,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:41:13,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:41:13,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:41:13,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:41:13,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:41:13,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:41:13" (1/1) ... [2023-11-11 23:41:13,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f82bdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:13, skipping insertion in model container [2023-11-11 23:41:13,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:41:13" (1/1) ... [2023-11-11 23:41:13,786 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:41:14,267 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:41:14,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:41:14,953 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:41:14,973 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:41:15,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:41:15,176 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:41:15,177 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:41:15,177 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:41:15,177 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:41:15,177 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:41:15,187 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:41:15,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15 WrapperNode [2023-11-11 23:41:15,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:41:15,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:41:15,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:41:15,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:41:15,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,295 INFO L138 Inliner]: procedures = 505, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 116 [2023-11-11 23:41:15,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:41:15,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:41:15,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:41:15,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:41:15,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:41:15,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:41:15,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:41:15,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:41:15,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:41:15" (1/1) ... [2023-11-11 23:41:15,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:41:15,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:41:15,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:41:15,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:41:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:41:15,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:41:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:41:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:41:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:41:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:41:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:41:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-11-11 23:41:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-11-11 23:41:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2023-11-11 23:41:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2023-11-11 23:41:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:41:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:41:15,681 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:41:15,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:41:15,958 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:41:16,026 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:41:16,027 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:41:16,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:41:16 BoogieIcfgContainer [2023-11-11 23:41:16,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:41:16,033 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:41:16,033 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:41:16,047 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:41:16,048 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:41:16" (1/1) ... [2023-11-11 23:41:16,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:41:16,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 73 states and 97 transitions. [2023-11-11 23:41:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 97 transitions. [2023-11-11 23:41:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-11 23:41:16,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:16,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:41:16,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 88 transitions. [2023-11-11 23:41:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2023-11-11 23:41:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-11 23:41:16,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:16,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-11 23:41:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 66 states and 85 transitions. [2023-11-11 23:41:17,279 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2023-11-11 23:41:17,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:41:17,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:17,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-11 23:41:17,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 65 states and 84 transitions. [2023-11-11 23:41:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2023-11-11 23:41:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-11 23:41:17,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:17,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-11 23:41:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 64 states and 83 transitions. [2023-11-11 23:41:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2023-11-11 23:41:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-11 23:41:17,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:17,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-11 23:41:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 64 states and 82 transitions. [2023-11-11 23:41:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2023-11-11 23:41:17,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-11 23:41:17,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:17,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-11 23:41:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 69 states and 90 transitions. [2023-11-11 23:41:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2023-11-11 23:41:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-11 23:41:18,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-11 23:41:18,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:18,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 75 states and 99 transitions. [2023-11-11 23:41:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2023-11-11 23:41:18,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-11 23:41:18,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:18,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-11 23:41:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:18,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 61 states and 76 transitions. [2023-11-11 23:41:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2023-11-11 23:41:18,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-11 23:41:18,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:18,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-11 23:41:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 61 states and 75 transitions. [2023-11-11 23:41:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2023-11-11 23:41:19,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-11 23:41:19,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:19,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:19,281 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-11 23:41:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 61 states and 74 transitions. [2023-11-11 23:41:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2023-11-11 23:41:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-11 23:41:19,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:19,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:19,815 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-11 23:41:19,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 60 states and 73 transitions. [2023-11-11 23:41:19,995 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions. [2023-11-11 23:41:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-11 23:41:19,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:41:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:41:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:41:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-11 23:41:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:41:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 59 states and 72 transitions. [2023-11-11 23:41:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2023-11-11 23:41:20,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:41:20,305 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2023-11-11 23:41:20,317 INFO L753 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-11 23:41:20,472 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:41:20,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:41:20 ImpRootNode [2023-11-11 23:41:20,479 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:41:20,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:41:20,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:41:20,480 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:41:20,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:41:16" (3/4) ... [2023-11-11 23:41:20,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:41:20,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:41:20,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2023-11-11 23:41:20,495 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:41:20,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2023-11-11 23:41:20,505 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-11 23:41:20,506 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-11 23:41:20,507 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:41:20,507 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:41:20,625 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:41:20,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:41:20,626 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:41:20,627 INFO L158 Benchmark]: Toolchain (without parser) took 6954.36ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 122.4MB in the beginning and 151.3MB in the end (delta: -28.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-11 23:41:20,627 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 163.6MB. Free memory was 130.3MB in the beginning and 130.2MB in the end (delta: 85.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:41:20,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1514.12ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 61.9MB in the end (delta: 60.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-11 23:41:20,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.93ms. Allocated memory is still 163.6MB. Free memory was 61.9MB in the beginning and 129.2MB in the end (delta: -67.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-11-11 23:41:20,629 INFO L158 Benchmark]: Boogie Preprocessor took 35.15ms. Allocated memory is still 163.6MB. Free memory was 129.2MB in the beginning and 127.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:41:20,629 INFO L158 Benchmark]: RCFGBuilder took 698.93ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 127.5MB in the beginning and 147.1MB in the end (delta: -19.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-11-11 23:41:20,630 INFO L158 Benchmark]: CodeCheck took 4446.35ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 157.5MB in the end (delta: -10.4MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2023-11-11 23:41:20,630 INFO L158 Benchmark]: Witness Printer took 146.34ms. Allocated memory is still 197.1MB. Free memory was 157.5MB in the beginning and 151.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:41:20,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 5 procedures, 73 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1813 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 1147 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 323 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1087 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 323 mSolverCounterUnsat, 989 mSDtfsCounter, 1087 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3681 GetRequests, 3629 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 529 NumberOfCodeBlocks, 529 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 228/236 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: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1624]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1624]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1658]: 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 163.6MB. Free memory was 130.3MB in the beginning and 130.2MB in the end (delta: 85.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1514.12ms. Allocated memory is still 163.6MB. Free memory was 122.4MB in the beginning and 61.9MB in the end (delta: 60.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.93ms. Allocated memory is still 163.6MB. Free memory was 61.9MB in the beginning and 129.2MB in the end (delta: -67.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.15ms. Allocated memory is still 163.6MB. Free memory was 129.2MB in the beginning and 127.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 698.93ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 127.5MB in the beginning and 147.1MB in the end (delta: -19.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * CodeCheck took 4446.35ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 157.5MB in the end (delta: -10.4MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Witness Printer took 146.34ms. Allocated memory is still 197.1MB. Free memory was 157.5MB in the beginning and 151.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:41:20,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c874905d-994a-4011-802f-bd24b36d0bc1/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE