./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi --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 e4243bc83ba83eaf566654fdfce104c9337df09a4f18ec4daa854525be0656da --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:20,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:20,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:16:20,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:16:20,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:16:20,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:20,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:20,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:20,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:20,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:20,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:20,632 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:20,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:16:20,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:20,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:20,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:20,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:20,636 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:16:20,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:16:20,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:20,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:20,639 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:20,639 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:20,640 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:20,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:20,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:20,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:20,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:20,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:20,643 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:16:20,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:16:20,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:20,644 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_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4243bc83ba83eaf566654fdfce104c9337df09a4f18ec4daa854525be0656da [2023-11-24 22:16:20,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:20,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:20,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:20,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:20,911 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:20,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_good.i [2023-11-24 22:16:24,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:24,525 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:24,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_good.i [2023-11-24 22:16:24,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/data/05f58dc73/d5356ba9f53d43358b65b23cde70ff42/FLAGd104ae18a [2023-11-24 22:16:24,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/data/05f58dc73/d5356ba9f53d43358b65b23cde70ff42 [2023-11-24 22:16:24,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:24,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:24,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:24,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:24,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:24,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:24" (1/1) ... [2023-11-24 22:16:24,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385840da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:24, skipping insertion in model container [2023-11-24 22:16:24,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:24" (1/1) ... [2023-11-24 22:16:24,681 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:25,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:25,787 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:25,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:26,058 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:16:26,059 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:16:26,059 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:16:26,059 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:16:26,059 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:16:26,088 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:26,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26 WrapperNode [2023-11-24 22:16:26,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:26,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:26,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:26,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:26,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,193 INFO L138 Inliner]: procedures = 503, calls = 80, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2023-11-24 22:16:26,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:26,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:26,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:26,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:26,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:26,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:26,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:26,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:26,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:26,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:26,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 22:16:26,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 22:16:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 22:16:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:16:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:16:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:16:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 22:16:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:16:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:16:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:16:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:16:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:16:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:16:26,477 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:26,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:26,716 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:26,786 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:26,786 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:16:26,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:26 BoogieIcfgContainer [2023-11-24 22:16:26,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:26,790 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:26,790 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:26,802 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:26,803 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:26" (1/1) ... [2023-11-24 22:16:26,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2023-11-24 22:16:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-24 22:16:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:16:26,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:26,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:27,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2023-11-24 22:16:27,413 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-24 22:16:27,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:16:27,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:27,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-24 22:16:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-24 22:16:27,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:16:27,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:27,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2023-11-24 22:16:28,088 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-24 22:16:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:16:28,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:28,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:28,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2023-11-24 22:16:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-11-24 22:16:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:16:28,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:28,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:16:28,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:28,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 31 transitions. [2023-11-24 22:16:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-24 22:16:28,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:16:28,741 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-24 22:16:28,750 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 22:16:28,792 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:16:28,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:16:28 ImpRootNode [2023-11-24 22:16:28,796 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:16:28,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:16:28,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:16:28,797 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:16:28,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:26" (3/4) ... [2023-11-24 22:16:28,800 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:16:28,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 22:16:28,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 22:16:28,813 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-24 22:16:28,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-24 22:16:28,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 22:16:28,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:16:28,929 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:16:28,929 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:16:28,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:16:28,930 INFO L158 Benchmark]: Toolchain (without parser) took 4337.93ms. Allocated memory is still 182.5MB. Free memory was 135.5MB in the beginning and 107.1MB in the end (delta: 28.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,930 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:16:28,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1496.97ms. Allocated memory is still 182.5MB. Free memory was 135.5MB in the beginning and 147.4MB in the end (delta: -11.9MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.75ms. Allocated memory is still 182.5MB. Free memory was 147.4MB in the beginning and 144.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,934 INFO L158 Benchmark]: Boogie Preprocessor took 39.30ms. Allocated memory is still 182.5MB. Free memory was 144.6MB in the beginning and 142.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,935 INFO L158 Benchmark]: RCFGBuilder took 552.31ms. Allocated memory is still 182.5MB. Free memory was 142.5MB in the beginning and 124.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,935 INFO L158 Benchmark]: CodeCheck took 2006.43ms. Allocated memory is still 182.5MB. Free memory was 124.5MB in the beginning and 112.4MB in the end (delta: 12.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,935 INFO L158 Benchmark]: Witness Printer took 132.35ms. Allocated memory is still 182.5MB. Free memory was 112.4MB in the beginning and 107.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:16:28,937 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, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 69 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 415 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 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: 1591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: 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 0.32ms. Allocated memory is still 134.2MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1496.97ms. Allocated memory is still 182.5MB. Free memory was 135.5MB in the beginning and 147.4MB in the end (delta: -11.9MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.75ms. Allocated memory is still 182.5MB. Free memory was 147.4MB in the beginning and 144.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.30ms. Allocated memory is still 182.5MB. Free memory was 144.6MB in the beginning and 142.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.31ms. Allocated memory is still 182.5MB. Free memory was 142.5MB in the beginning and 124.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2006.43ms. Allocated memory is still 182.5MB. Free memory was 124.5MB in the beginning and 112.4MB in the end (delta: 12.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 132.35ms. Allocated memory is still 182.5MB. Free memory was 112.4MB in the beginning and 107.1MB 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! [2023-11-24 22:16:28,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46444e3f-1eba-4a65-916f-2ab3adcf6cc8/bin/ukojak-verify-afCqCEvfdi/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