./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_12_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_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/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_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/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_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/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 aac93d1ed8246d19d1f9c2b24554a800a360cc7b1e671a6cb61c7ee2bad57c4f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:02:18,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:02:18,257 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-12 00:02:18,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:02:18,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:02:18,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:02:18,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:02:18,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:02:18,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:02:18,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:02:18,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:02:18,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:02:18,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:02:18,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:02:18,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:02:18,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:02:18,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:02:18,299 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:02:18,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:02:18,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:02:18,301 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:02:18,301 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:02:18,302 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:02:18,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:02:18,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:02:18,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:02:18,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:02:18,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:02:18,304 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:02:18,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:02:18,305 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:02:18,305 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_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aac93d1ed8246d19d1f9c2b24554a800a360cc7b1e671a6cb61c7ee2bad57c4f [2023-11-12 00:02:18,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:02:18,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:02:18,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:02:18,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:02:18,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:02:18,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_12_good.i [2023-11-12 00:02:21,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:02:22,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:02:22,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_12_good.i [2023-11-12 00:02:22,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/data/b3cfee725/c880371b80174670a4363d250aa29622/FLAG9a8eee05f [2023-11-12 00:02:22,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/data/b3cfee725/c880371b80174670a4363d250aa29622 [2023-11-12 00:02:22,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:02:22,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:02:22,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:02:22,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:02:22,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:02:22,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:02:22" (1/1) ... [2023-11-12 00:02:22,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fafd49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:22, skipping insertion in model container [2023-11-12 00:02:22,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:02:22" (1/1) ... [2023-11-12 00:02:22,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:02:22,740 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:02:23,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:02:23,321 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:02:23,360 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:02:23,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:02:23,624 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:02:23,624 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:02:23,624 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:02:23,625 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:02:23,625 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:02:23,625 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:02:23,634 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:02:23,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23 WrapperNode [2023-11-12 00:02:23,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:02:23,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:02:23,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:02:23,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:02:23,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,729 INFO L138 Inliner]: procedures = 502, calls = 85, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114 [2023-11-12 00:02:23,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:02:23,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:02:23,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:02:23,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:02:23,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:02:23,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:02:23,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:02:23,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:02:23,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:23" (1/1) ... [2023-11-12 00:02:23,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:02:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:02:23,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:02:23,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:02:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-12 00:02:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-12 00:02:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-12 00:02:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-12 00:02:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-12 00:02:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:02:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:02:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:02:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:02:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:02:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:02:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:02:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:02:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:02:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:02:24,004 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:02:24,006 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:02:24,295 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:02:24,371 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:02:24,371 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:02:24,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:24 BoogieIcfgContainer [2023-11-12 00:02:24,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:02:24,375 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:02:24,375 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:02:24,392 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:02:24,393 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:24" (1/1) ... [2023-11-12 00:02:24,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:02:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2023-11-12 00:02:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-11-12 00:02:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:02:24,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:24,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:02:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 65 states and 86 transitions. [2023-11-12 00:02:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2023-11-12 00:02:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:02:25,097 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:02:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 67 states and 88 transitions. [2023-11-12 00:02:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2023-11-12 00:02:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:02:25,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:02:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 68 states and 89 transitions. [2023-11-12 00:02:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 89 transitions. [2023-11-12 00:02:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:02:25,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:02:25,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 67 states and 88 transitions. [2023-11-12 00:02:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2023-11-12 00:02:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:02:25,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:02:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 66 states and 87 transitions. [2023-11-12 00:02:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2023-11-12 00:02:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:02:25,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:02:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 65 states and 85 transitions. [2023-11-12 00:02:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2023-11-12 00:02:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:02:25,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:02:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 55 states and 72 transitions. [2023-11-12 00:02:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2023-11-12 00:02:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 00:02:25,823 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:02:25,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 54 states and 71 transitions. [2023-11-12 00:02:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2023-11-12 00:02:25,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 00:02:25,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:25,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:02:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 53 states and 70 transitions. [2023-11-12 00:02:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2023-11-12 00:02:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 00:02:26,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:26,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:02:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 52 states and 69 transitions. [2023-11-12 00:02:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2023-11-12 00:02:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 00:02:26,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:26,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:02:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 51 states and 68 transitions. [2023-11-12 00:02:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2023-11-12 00:02:26,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:02:26,253 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-12 00:02:26,263 INFO L753 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-12 00:02:26,327 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:02:26,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:02:26 ImpRootNode [2023-11-12 00:02:26,332 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:02:26,332 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:02:26,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:02:26,333 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:02:26,333 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:24" (3/4) ... [2023-11-12 00:02:26,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:02:26,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-12 00:02:26,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-11-12 00:02:26,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-12 00:02:26,350 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-12 00:02:26,351 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-12 00:02:26,351 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:02:26,352 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:02:26,352 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:02:26,475 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:02:26,476 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-12 00:02:26,476 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:02:26,477 INFO L158 Benchmark]: Toolchain (without parser) took 4305.46ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 89.3MB in the beginning and 59.3MB in the end (delta: 30.0MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,478 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:02:26,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1459.47ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 89.0MB in the beginning and 125.6MB in the end (delta: -36.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.23ms. Allocated memory is still 199.2MB. Free memory was 125.6MB in the beginning and 122.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,479 INFO L158 Benchmark]: Boogie Preprocessor took 36.07ms. Allocated memory is still 199.2MB. Free memory was 122.2MB in the beginning and 120.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,480 INFO L158 Benchmark]: RCFGBuilder took 606.70ms. Allocated memory is still 199.2MB. Free memory was 120.5MB in the beginning and 161.2MB in the end (delta: -40.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,480 INFO L158 Benchmark]: CodeCheck took 1957.23ms. Allocated memory is still 199.2MB. Free memory was 161.2MB in the beginning and 64.6MB in the end (delta: 96.6MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,480 INFO L158 Benchmark]: Witness Printer took 144.14ms. Allocated memory is still 199.2MB. Free memory was 64.6MB in the beginning and 59.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:02:26,482 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 4 procedures, 59 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 899 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 275 mSDsluCounter, 836 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 244 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 592 mSDtfsCounter, 488 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1997 GetRequests, 1966 SyntacticMatches, 21 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 74/74 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: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1596]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1596]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: 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: 1642]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1459.47ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 89.0MB in the beginning and 125.6MB in the end (delta: -36.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.23ms. Allocated memory is still 199.2MB. Free memory was 125.6MB in the beginning and 122.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.07ms. Allocated memory is still 199.2MB. Free memory was 122.2MB in the beginning and 120.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.70ms. Allocated memory is still 199.2MB. Free memory was 120.5MB in the beginning and 161.2MB in the end (delta: -40.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 1957.23ms. Allocated memory is still 199.2MB. Free memory was 161.2MB in the beginning and 64.6MB in the end (delta: 96.6MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. * Witness Printer took 144.14ms. Allocated memory is still 199.2MB. Free memory was 64.6MB in the beginning and 59.3MB 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! [2023-11-12 00:02:26,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad5cb33-e1fd-48f2-bd62-bdbbaadcdbeb/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