./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC --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 405640f1d4fbab91f44c2ed3726169d408189e38eaf93f4ebb1c29e2da47b11f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:06:47,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:06:47,529 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:06:47,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:06:47,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:06:47,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:06:47,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:06:47,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:06:47,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:06:47,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:06:47,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:06:47,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:06:47,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:06:47,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:06:47,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:06:47,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:06:47,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:06:47,603 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:06:47,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:06:47,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:06:47,605 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:06:47,606 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:06:47,606 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:06:47,608 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:06:47,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:06:47,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:47,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:06:47,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:06:47,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:06:47,612 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:06:47,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:06:47,613 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:06:47,614 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_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 405640f1d4fbab91f44c2ed3726169d408189e38eaf93f4ebb1c29e2da47b11f [2023-11-23 20:06:48,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:06:48,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:06:48,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:06:48,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:06:48,045 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:06:48,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_63_good.i [2023-11-23 20:06:51,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:06:51,798 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:06:51,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_63_good.i [2023-11-23 20:06:51,833 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/data/ea08af60a/93015f0a8d274dd2860bcd427a5f860f/FLAGc1b0a02ee [2023-11-23 20:06:51,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/data/ea08af60a/93015f0a8d274dd2860bcd427a5f860f [2023-11-23 20:06:51,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:06:51,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:06:51,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:51,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:06:51,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:06:51,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:51" (1/1) ... [2023-11-23 20:06:51,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f1685f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:51, skipping insertion in model container [2023-11-23 20:06:51,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:51" (1/1) ... [2023-11-23 20:06:51,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:06:52,482 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:52,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:53,006 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:06:53,027 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:53,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:53,217 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:53,217 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:53,217 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:53,217 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:53,218 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:53,245 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:06:53,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53 WrapperNode [2023-11-23 20:06:53,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:53,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:53,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:06:53,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:06:53,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,367 INFO L138 Inliner]: procedures = 503, calls = 73, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 116 [2023-11-23 20:06:53,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:53,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:06:53,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:06:53,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:06:53,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:06:53,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:06:53,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:06:53,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:06:53,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:53" (1/1) ... [2023-11-23 20:06:53,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:06:53,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:06:53,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:06:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:06:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:06:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:06:53,504 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:06:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:06:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:06:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:06:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:06:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:06:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:06:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:06:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:06:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:06:53,719 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:06:53,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:06:54,060 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:06:54,302 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:06:54,302 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:06:54,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:54 BoogieIcfgContainer [2023-11-23 20:06:54,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:06:54,305 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:06:54,306 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:06:54,319 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:06:54,319 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:54" (1/1) ... [2023-11-23 20:06:54,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:06:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-23 20:06:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-23 20:06:54,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:06:54,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:54,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:06:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:55,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-23 20:06:55,031 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-23 20:06:55,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:06:55,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:55,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:06:55,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:55,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-23 20:06:55,305 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-23 20:06:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:06:55,306 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:55,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:06:55,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-23 20:06:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-23 20:06:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:06:55,558 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:06:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-23 20:06:56,170 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-23 20:06:56,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:06:56,171 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-23 20:06:56,181 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:06:56,207 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:06:56,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:06:56 ImpRootNode [2023-11-23 20:06:56,212 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:06:56,213 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:06:56,213 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:06:56,214 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:06:56,214 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:54" (3/4) ... [2023-11-23 20:06:56,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:06:56,221 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:06:56,221 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:06:56,228 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2023-11-23 20:06:56,228 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 20:06:56,229 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:06:56,230 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:06:56,351 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:06:56,352 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:06:56,352 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:06:56,353 INFO L158 Benchmark]: Toolchain (without parser) took 4491.73ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 150.6MB in the beginning and 147.8MB in the end (delta: 2.8MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-11-23 20:06:56,353 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:56,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1391.90ms. Allocated memory is still 180.4MB. Free memory was 149.7MB in the beginning and 146.3MB in the end (delta: 3.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-23 20:06:56,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.32ms. Allocated memory is still 180.4MB. Free memory was 146.3MB in the beginning and 143.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:56,355 INFO L158 Benchmark]: Boogie Preprocessor took 34.95ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 141.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:56,355 INFO L158 Benchmark]: RCFGBuilder took 900.81ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 101.2MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 20:06:56,356 INFO L158 Benchmark]: CodeCheck took 1907.11ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 101.2MB in the beginning and 154.1MB in the end (delta: -52.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:56,356 INFO L158 Benchmark]: Witness Printer took 138.97ms. Allocated memory is still 218.1MB. Free memory was 154.1MB in the beginning and 147.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:06:56,359 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 40 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 1581]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1581]: 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: 1591]: 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: 1574]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1391.90ms. Allocated memory is still 180.4MB. Free memory was 149.7MB in the beginning and 146.3MB in the end (delta: 3.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.32ms. Allocated memory is still 180.4MB. Free memory was 146.3MB in the beginning and 143.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.95ms. Allocated memory is still 180.4MB. Free memory was 143.2MB in the beginning and 141.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 900.81ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 101.2MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * CodeCheck took 1907.11ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 101.2MB in the beginning and 154.1MB in the end (delta: -52.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 138.97ms. Allocated memory is still 218.1MB. Free memory was 154.1MB in the beginning and 147.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:06:56,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98cf662-3b55-4355-9198-2ddd6134aa5e/bin/ukojak-verify-1t5iHCbJaC/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