./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_53_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_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/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_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_53_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/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_3e390640-1244-49c1-9bd7-c7047faecf30/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 4996970cbdb08df4885326927341b0a56a71aab880e9248b21a9f4b2145d5af1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:56:48,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:56:48,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:56:48,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:56:48,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:56:48,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:56:48,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:56:48,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:56:48,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:56:48,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:56:48,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:56:48,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:56:48,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:56:48,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:56:48,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:56:48,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:56:48,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:56:48,682 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:56:48,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:56:48,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:56:48,684 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:56:48,685 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:56:48,686 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:56:48,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:56:48,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:56:48,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:56:48,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:56:48,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:56:48,690 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:56:48,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:56:48,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:56:48,692 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_3e390640-1244-49c1-9bd7-c7047faecf30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4996970cbdb08df4885326927341b0a56a71aab880e9248b21a9f4b2145d5af1 [2023-11-11 23:56:48,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:56:49,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:56:49,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:56:49,014 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:56:49,015 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:56:49,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_53_good.i [2023-11-11 23:56:52,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:56:52,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:56:52,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_53_good.i [2023-11-11 23:56:53,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/data/3ccc74de1/44b2bf30295546bcbfae28c4d74ac2f2/FLAGc96df7127 [2023-11-11 23:56:53,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/data/3ccc74de1/44b2bf30295546bcbfae28c4d74ac2f2 [2023-11-11 23:56:53,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:56:53,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:56:53,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:56:53,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:56:53,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:56:53,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:56:53" (1/1) ... [2023-11-11 23:56:53,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0bfb73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:53, skipping insertion in model container [2023-11-11 23:56:53,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:56:53" (1/1) ... [2023-11-11 23:56:53,161 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:56:53,599 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:56:54,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:56:54,419 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:56:54,450 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:56:54,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:56:54,779 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:56:54,779 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:56:54,780 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:56:54,780 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:56:54,780 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:56:54,781 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:56:54,790 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:56:54,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54 WrapperNode [2023-11-11 23:56:54,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:56:54,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:56:54,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:56:54,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:56:54,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,886 INFO L138 Inliner]: procedures = 508, calls = 75, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 81 [2023-11-11 23:56:54,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:56:54,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:56:54,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:56:54,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:56:54,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,924 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:56:54,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:56:54,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:56:54,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:56:54,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:56:54" (1/1) ... [2023-11-11 23:56:54,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:56:54,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:56:55,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:56:55,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:56:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:56:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:56:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:56:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:56:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:56:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:56:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-11 23:56:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:56:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:56:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:56:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:56:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:56:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:56:55,225 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:56:55,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:56:55,390 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:56:55,435 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:56:55,435 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:56:55,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:56:55 BoogieIcfgContainer [2023-11-11 23:56:55,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:56:55,439 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:56:55,440 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:56:55,451 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:56:55,452 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:56:55" (1/1) ... [2023-11-11 23:56:55,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:56:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:56:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-11 23:56:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-11 23:56:55,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:56:55,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:56:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:56:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:56:55,963 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 23:56:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:56:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-11 23:56:56,027 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-11 23:56:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:56:56,027 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:56:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:56:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:56:56,159 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 23:56:56,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:56:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2023-11-11 23:56:56,189 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-11 23:56:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:56:56,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:56:56,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:56:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:56:56,494 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 23:56:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:56:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2023-11-11 23:56:56,610 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-11 23:56:56,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:56:56,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:56:56,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:56:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:56:56,711 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 23:56:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:56:56,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2023-11-11 23:56:56,812 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-11 23:56:56,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-11 23:56:56,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:56:56,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:56:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:56:57,025 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 23:56:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:56:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 29 transitions. [2023-11-11 23:56:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-11 23:56:57,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:56:57,107 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-11 23:56:57,117 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:56:57,158 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:56:57,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:56:57 ImpRootNode [2023-11-11 23:56:57,163 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:56:57,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:56:57,164 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:56:57,164 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:56:57,165 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:56:55" (3/4) ... [2023-11-11 23:56:57,171 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:56:57,177 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:56:57,177 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:56:57,186 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-11 23:56:57,186 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-11 23:56:57,187 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:56:57,187 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:56:57,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:56:57,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:56:57,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:56:57,307 INFO L158 Benchmark]: Toolchain (without parser) took 4263.17ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 116.5MB in the beginning and 140.3MB in the end (delta: -23.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-11 23:56:57,307 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:56:57,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1743.16ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 116.5MB in the beginning and 162.0MB in the end (delta: -45.5MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2023-11-11 23:56:57,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.09ms. Allocated memory is still 211.8MB. Free memory was 162.0MB in the beginning and 158.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:56:57,309 INFO L158 Benchmark]: Boogie Preprocessor took 59.63ms. Allocated memory is still 211.8MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:56:57,311 INFO L158 Benchmark]: RCFGBuilder took 491.19ms. Allocated memory is still 211.8MB. Free memory was 157.8MB in the beginning and 140.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-11 23:56:57,312 INFO L158 Benchmark]: CodeCheck took 1723.52ms. Allocated memory is still 211.8MB. Free memory was 140.0MB in the beginning and 145.5MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:56:57,312 INFO L158 Benchmark]: Witness Printer took 142.21ms. Allocated memory is still 211.8MB. Free memory was 145.5MB in the beginning and 140.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:56:57,315 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, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 67 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 434 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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 - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1584]: 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 167.8MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1743.16ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 116.5MB in the beginning and 162.0MB in the end (delta: -45.5MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.09ms. Allocated memory is still 211.8MB. Free memory was 162.0MB in the beginning and 158.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.63ms. Allocated memory is still 211.8MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.19ms. Allocated memory is still 211.8MB. Free memory was 157.8MB in the beginning and 140.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1723.52ms. Allocated memory is still 211.8MB. Free memory was 140.0MB in the beginning and 145.5MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 142.21ms. Allocated memory is still 211.8MB. Free memory was 145.5MB in the beginning and 140.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:56:57,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e390640-1244-49c1-9bd7-c7047faecf30/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