./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/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_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/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_074effda-66a3-4218-9ae6-e2b5d63e04c3/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 cd7292e1d0b83f8ed7e1275bcd47ad6159422d6d204be9af21c6428d7c5d5839 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:54:21,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:54:21,416 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:54:21,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:54:21,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:54:21,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:54:21,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:54:21,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:54:21,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:54:21,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:54:21,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:54:21,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:54:21,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:54:21,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:54:21,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:54:21,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:54:21,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:54:21,480 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:54:21,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:54:21,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:54:21,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:54:21,482 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:54:21,482 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:54:21,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:54:21,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:54:21,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:54:21,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:54:21,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:54:21,485 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:54:21,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:54:21,486 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:54:21,486 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_074effda-66a3-4218-9ae6-e2b5d63e04c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd7292e1d0b83f8ed7e1275bcd47ad6159422d6d204be9af21c6428d7c5d5839 [2023-11-11 23:54:21,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:54:21,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:54:21,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:54:21,816 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:54:21,816 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:54:21,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_02_good.i [2023-11-11 23:54:24,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:54:25,417 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:54:25,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_02_good.i [2023-11-11 23:54:25,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/data/513b8ae60/132b9d4411fa463994ed6261a582fc22/FLAG26b8679b3 [2023-11-11 23:54:25,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/data/513b8ae60/132b9d4411fa463994ed6261a582fc22 [2023-11-11 23:54:25,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:54:25,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:54:25,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:54:25,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:54:25,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:54:25,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:54:25" (1/1) ... [2023-11-11 23:54:25,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@140f0cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:25, skipping insertion in model container [2023-11-11 23:54:25,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:54:25" (1/1) ... [2023-11-11 23:54:25,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:54:25,930 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:54:26,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:54:26,706 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:54:26,745 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:54:26,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:54:27,036 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:54:27,038 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:54:27,038 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:54:27,038 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:54:27,039 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:54:27,039 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:54:27,048 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:54:27,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27 WrapperNode [2023-11-11 23:54:27,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:54:27,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:54:27,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:54:27,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:54:27,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,131 INFO L138 Inliner]: procedures = 504, calls = 87, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 112 [2023-11-11 23:54:27,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:54:27,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:54:27,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:54:27,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:54:27,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:54:27,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:54:27,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:54:27,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:54:27,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:54:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:54:27,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:54:27,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:54:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:54:27,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:54:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:54:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:54:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:54:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:54:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-11 23:54:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:54:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:54:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:54:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:54:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:54:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:54:27,487 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:54:27,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:54:27,722 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:54:27,821 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:54:27,821 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-11 23:54:27,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:54:27 BoogieIcfgContainer [2023-11-11 23:54:27,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:54:27,826 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:54:27,826 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:54:27,838 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:54:27,839 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:54:27" (1/1) ... [2023-11-11 23:54:27,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:54:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:27,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 54 states and 74 transitions. [2023-11-11 23:54:27,928 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2023-11-11 23:54:27,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:54:27,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:27,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:28,280 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 23:54:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 53 states and 70 transitions. [2023-11-11 23:54:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2023-11-11 23:54:28,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:54:28,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:28,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:28,595 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 23:54:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:28,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 57 states and 75 transitions. [2023-11-11 23:54:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2023-11-11 23:54:28,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:54:28,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:28,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:28,767 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 23:54:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:28,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 56 states and 74 transitions. [2023-11-11 23:54:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2023-11-11 23:54:28,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:54:28,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:28,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:54:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 68 transitions. [2023-11-11 23:54:29,083 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2023-11-11 23:54:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-11 23:54:29,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:29,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:54:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 51 states and 66 transitions. [2023-11-11 23:54:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2023-11-11 23:54:29,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:54:29,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:54:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 54 states and 70 transitions. [2023-11-11 23:54:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2023-11-11 23:54:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-11 23:54:29,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:29,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:54:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 53 states and 69 transitions. [2023-11-11 23:54:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2023-11-11 23:54:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:54:29,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:29,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:54:29,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 49 states and 64 transitions. [2023-11-11 23:54:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-11-11 23:54:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-11 23:54:29,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:29,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:54:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 47 states and 59 transitions. [2023-11-11 23:54:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2023-11-11 23:54:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-11 23:54:29,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:54:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 46 states and 58 transitions. [2023-11-11 23:54:30,002 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-11 23:54:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-11 23:54:30,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:30,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:54:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 45 states and 56 transitions. [2023-11-11 23:54:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-11-11 23:54:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:54:30,203 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:54:30,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:54:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:54:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:54:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:54:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 44 states and 55 transitions. [2023-11-11 23:54:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-11-11 23:54:30,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:54:30,345 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2023-11-11 23:54:30,358 INFO L753 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-11 23:54:30,452 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:54:30,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:54:30 ImpRootNode [2023-11-11 23:54:30,458 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:54:30,459 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:54:30,459 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:54:30,459 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:54:30,460 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:54:27" (3/4) ... [2023-11-11 23:54:30,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:54:30,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:54:30,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:54:30,481 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-11 23:54:30,482 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-11 23:54:30,483 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:54:30,483 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:54:30,484 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:54:30,622 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:54:30,622 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:54:30,623 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:54:30,624 INFO L158 Benchmark]: Toolchain (without parser) took 5143.07ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 113.6MB in the beginning and 112.3MB in the end (delta: 1.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,625 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory was 79.7MB in the beginning and 79.7MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:54:30,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1565.84ms. Allocated memory is still 155.2MB. Free memory was 113.6MB in the beginning and 86.2MB in the end (delta: 27.4MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.28ms. Allocated memory is still 155.2MB. Free memory was 86.2MB in the beginning and 82.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,627 INFO L158 Benchmark]: Boogie Preprocessor took 42.83ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,628 INFO L158 Benchmark]: RCFGBuilder took 648.55ms. Allocated memory is still 155.2MB. Free memory was 81.3MB in the beginning and 118.7MB in the end (delta: -37.4MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,629 INFO L158 Benchmark]: CodeCheck took 2632.26ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 118.7MB in the beginning and 117.6MB in the end (delta: 1.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,629 INFO L158 Benchmark]: Witness Printer took 164.13ms. Allocated memory is still 186.6MB. Free memory was 117.6MB in the beginning and 112.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:54:30,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 54 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 945 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 718 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 446 IncrementalHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 560 mSDtfsCounter, 446 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1821 GetRequests, 1794 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 38/38 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: 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: 1662]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory was 79.7MB in the beginning and 79.7MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1565.84ms. Allocated memory is still 155.2MB. Free memory was 113.6MB in the beginning and 86.2MB in the end (delta: 27.4MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.28ms. Allocated memory is still 155.2MB. Free memory was 86.2MB in the beginning and 82.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.83ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.55ms. Allocated memory is still 155.2MB. Free memory was 81.3MB in the beginning and 118.7MB in the end (delta: -37.4MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * CodeCheck took 2632.26ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 118.7MB in the beginning and 117.6MB in the end (delta: 1.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 164.13ms. Allocated memory is still 186.6MB. Free memory was 117.6MB in the beginning and 112.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:54:30,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074effda-66a3-4218-9ae6-e2b5d63e04c3/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