./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_21_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_21_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL --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 ecb2d6452661f3f19c9d28e0c949c4ab3524a098d4b4f35a751de3862edb09da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:34:47,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:34:47,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:34:47,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:34:47,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:34:47,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:34:47,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:34:47,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:34:47,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:34:47,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:34:47,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:34:47,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:34:47,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:34:47,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:34:47,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:34:47,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:34:47,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:34:47,505 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:34:47,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:34:47,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:34:47,507 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:34:47,507 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:34:47,508 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:34:47,508 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:34:47,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:34:47,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:34:47,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:34:47,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:34:47,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:34:47,512 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:34:47,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:34:47,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:34:47,514 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_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecb2d6452661f3f19c9d28e0c949c4ab3524a098d4b4f35a751de3862edb09da [2023-11-19 03:34:47,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:34:47,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:34:47,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:34:47,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:34:47,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:34:47,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_21_good.i [2023-11-19 03:34:50,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:34:51,416 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:34:51,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_21_good.i [2023-11-19 03:34:51,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/data/f21026f7d/497277c8793b4d828f17631befb40e19/FLAGe6e269eed [2023-11-19 03:34:51,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/data/f21026f7d/497277c8793b4d828f17631befb40e19 [2023-11-19 03:34:51,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:34:51,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:34:51,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:34:51,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:34:51,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:34:51,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:34:51" (1/1) ... [2023-11-19 03:34:51,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7660089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:51, skipping insertion in model container [2023-11-19 03:34:51,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:34:51" (1/1) ... [2023-11-19 03:34:51,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:34:51,939 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:34:52,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:34:52,576 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:34:52,596 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:34:52,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:34:52,875 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:34:52,875 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:34:52,876 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:34:52,876 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:34:52,876 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:34:52,884 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:34:52,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52 WrapperNode [2023-11-19 03:34:52,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:34:52,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:34:52,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:34:52,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:34:52,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:52,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:52,992 INFO L138 Inliner]: procedures = 505, calls = 80, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 101 [2023-11-19 03:34:52,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:34:52,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:34:52,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:34:52,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:34:53,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:34:53,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:34:53,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:34:53,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:34:53,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:52" (1/1) ... [2023-11-19 03:34:53,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:34:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:34:53,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:34:53,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:34:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 03:34:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 03:34:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:34:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:34:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:34:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:34:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:34:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:34:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:34:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:34:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:34:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:34:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:34:53,383 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:34:53,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:34:53,588 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:34:53,669 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:34:53,670 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:34:53,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:34:53 BoogieIcfgContainer [2023-11-19 03:34:53,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:34:53,680 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:34:53,681 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:34:53,688 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:34:53,689 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:34:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2023-11-19 03:34:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-11-19 03:34:53,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:34:53,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2023-11-19 03:34:54,199 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-11-19 03:34:54,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:34:54,203 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:54,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 37 states and 47 transitions. [2023-11-19 03:34:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2023-11-19 03:34:54,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:34:54,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:34:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 44 transitions. [2023-11-19 03:34:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-11-19 03:34:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:34:54,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:34:54,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 43 transitions. [2023-11-19 03:34:54,930 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2023-11-19 03:34:54,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:34:54,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:34:55,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:55,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 42 transitions. [2023-11-19 03:34:55,095 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-19 03:34:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:34:55,097 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:55,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:55,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:34:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 41 transitions. [2023-11-19 03:34:55,483 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-11-19 03:34:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:34:55,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:34:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 40 transitions. [2023-11-19 03:34:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-19 03:34:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:34:55,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:55,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:34:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 39 transitions. [2023-11-19 03:34:56,064 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-19 03:34:56,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:34:56,065 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-19 03:34:56,074 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-19 03:34:56,116 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:34:56,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:34:56 ImpRootNode [2023-11-19 03:34:56,121 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:34:56,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:34:56,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:34:56,122 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:34:56,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:34:53" (3/4) ... [2023-11-19 03:34:56,126 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:34:56,130 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 03:34:56,130 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 03:34:56,137 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-19 03:34:56,137 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 03:34:56,138 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:34:56,138 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:34:56,243 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:34:56,244 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:34:56,244 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:34:56,245 INFO L158 Benchmark]: Toolchain (without parser) took 4765.01ms. Allocated memory is still 213.9MB. Free memory was 163.2MB in the beginning and 169.4MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:34:56,245 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:34:56,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1404.90ms. Allocated memory is still 213.9MB. Free memory was 162.5MB in the beginning and 176.8MB in the end (delta: -14.3MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2023-11-19 03:34:56,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.07ms. Allocated memory is still 213.9MB. Free memory was 176.8MB in the beginning and 173.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:34:56,252 INFO L158 Benchmark]: Boogie Preprocessor took 79.71ms. Allocated memory is still 213.9MB. Free memory was 173.6MB in the beginning and 171.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:34:56,253 INFO L158 Benchmark]: RCFGBuilder took 606.24ms. Allocated memory is still 213.9MB. Free memory was 171.5MB in the beginning and 152.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 03:34:56,253 INFO L158 Benchmark]: CodeCheck took 2440.99ms. Allocated memory is still 213.9MB. Free memory was 152.6MB in the beginning and 175.6MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:34:56,254 INFO L158 Benchmark]: Witness Printer took 122.24ms. Allocated memory is still 213.9MB. Free memory was 175.6MB in the beginning and 169.4MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:34:56,256 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, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 390 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 276 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 216 mSDtfsCounter, 276 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 773 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1608]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1608]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 1633]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1404.90ms. Allocated memory is still 213.9MB. Free memory was 162.5MB in the beginning and 176.8MB in the end (delta: -14.3MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.07ms. Allocated memory is still 213.9MB. Free memory was 176.8MB in the beginning and 173.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.71ms. Allocated memory is still 213.9MB. Free memory was 173.6MB in the beginning and 171.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.24ms. Allocated memory is still 213.9MB. Free memory was 171.5MB in the beginning and 152.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2440.99ms. Allocated memory is still 213.9MB. Free memory was 152.6MB in the beginning and 175.6MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 122.24ms. Allocated memory is still 213.9MB. Free memory was 175.6MB in the beginning and 169.4MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:34:56,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beab3cd1-8818-4beb-9153-ba9e1c13eb36/bin/ukojak-verify-G8NBE6pJGL/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