./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_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_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/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_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/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_c1090655-512d-46c6-b237-098d9d5659ae/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 18dd30935870c002725bb1470af644cd66f7138f49f73570baf6db5ff8b7fd5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:21:44,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:21:45,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:21:45,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:21:45,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:21:45,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:21:45,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:21:45,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:21:45,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:21:45,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:21:45,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:21:45,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:21:45,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:21:45,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:21:45,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:21:45,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:21:45,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:21:45,123 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:21:45,124 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:21:45,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:21:45,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:21:45,125 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:21:45,126 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:21:45,126 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:21:45,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:21:45,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:45,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:21:45,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:21:45,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:21:45,130 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:21:45,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:21:45,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:21:45,132 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_c1090655-512d-46c6-b237-098d9d5659ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dd30935870c002725bb1470af644cd66f7138f49f73570baf6db5ff8b7fd5c [2023-11-23 20:21:45,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:21:45,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:21:45,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:21:45,449 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:21:45,449 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:21:45,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_good.i [2023-11-23 20:21:48,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:21:49,048 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:21:49,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_good.i [2023-11-23 20:21:49,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/data/26bf7437f/ef53aed22c394840acd40bec555cc42a/FLAG4d8a109de [2023-11-23 20:21:49,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/data/26bf7437f/ef53aed22c394840acd40bec555cc42a [2023-11-23 20:21:49,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:21:49,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:21:49,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:49,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:21:49,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:21:49,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:49" (1/1) ... [2023-11-23 20:21:49,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146a313b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:49, skipping insertion in model container [2023-11-23 20:21:49,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:49" (1/1) ... [2023-11-23 20:21:49,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:21:49,651 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:21:50,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:50,397 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:21:50,420 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:21:50,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:50,658 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:50,658 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:50,659 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:50,659 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:50,659 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:50,668 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:21:50,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50 WrapperNode [2023-11-23 20:21:50,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:50,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:50,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:21:50,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:21:50,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,773 INFO L138 Inliner]: procedures = 501, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2023-11-23 20:21:50,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:50,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:21:50,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:21:50,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:21:50,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:21:50,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:21:50,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:21:50,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:21:50,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:50" (1/1) ... [2023-11-23 20:21:50,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:50,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:21:50,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:21:50,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:21:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:21:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:21:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:21:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:21:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:21:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:21:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:21:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:21:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:21:51,056 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:21:51,058 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:21:51,427 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:21:51,689 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:21:51,689 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 20:21:51,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:51 BoogieIcfgContainer [2023-11-23 20:21:51,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:21:51,694 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:21:51,695 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:21:51,707 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:21:51,707 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:51" (1/1) ... [2023-11-23 20:21:51,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:21:51,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:51,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-23 20:21:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-23 20:21:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:21:51,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:51,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:52,246 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 20:21:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2023-11-23 20:21:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-11-23 20:21:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:21:52,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:52,638 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 20:21:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2023-11-23 20:21:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-23 20:21:52,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:21:52,736 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:21:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:52,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-23 20:21:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-23 20:21:52,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:21:52,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:21:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:21:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:21:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-23 20:21:53,146 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-23 20:21:53,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:21:53,148 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-23 20:21:53,159 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:21:53,216 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2023-11-23 20:21:53,226 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:21:53,227 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-23 20:21:53,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:21:53 ImpRootNode [2023-11-23 20:21:53,228 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:21:53,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:21:53,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:21:53,229 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:21:53,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:51" (3/4) ... [2023-11-23 20:21:53,233 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:21:53,237 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:21:53,237 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:21:53,245 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-11-23 20:21:53,246 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 20:21:53,246 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:21:53,247 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:21:53,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:21:53,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:21:53,378 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:21:53,379 INFO L158 Benchmark]: Toolchain (without parser) took 4263.42ms. Allocated memory was 130.0MB in the beginning and 224.4MB in the end (delta: 94.4MB). Free memory was 79.8MB in the beginning and 152.7MB in the end (delta: -72.9MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-23 20:21:53,380 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:53,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1550.42ms. Allocated memory was 130.0MB in the beginning and 186.6MB in the end (delta: 56.6MB). Free memory was 79.8MB in the beginning and 109.8MB in the end (delta: -30.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2023-11-23 20:21:53,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.69ms. Allocated memory is still 186.6MB. Free memory was 109.8MB in the beginning and 106.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:21:53,382 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 186.6MB. Free memory was 106.5MB in the beginning and 105.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:53,382 INFO L158 Benchmark]: RCFGBuilder took 879.43ms. Allocated memory is still 186.6MB. Free memory was 105.3MB in the beginning and 117.8MB in the end (delta: -12.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:21:53,383 INFO L158 Benchmark]: CodeCheck took 1533.86ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 117.8MB in the beginning and 158.9MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:53,383 INFO L158 Benchmark]: Witness Printer took 149.74ms. Allocated memory is still 224.4MB. Free memory was 158.9MB in the beginning and 152.7MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:21:53,386 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 48 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1581]: Loop Invariant Derived loop invariant: (((data + 2) <= 0) && (0 <= (data + 2))) - InvariantResult [Line: 1601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1557]: Loop Invariant Derived loop invariant: (data < 2147483648) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1550.42ms. Allocated memory was 130.0MB in the beginning and 186.6MB in the end (delta: 56.6MB). Free memory was 79.8MB in the beginning and 109.8MB in the end (delta: -30.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.69ms. Allocated memory is still 186.6MB. Free memory was 109.8MB in the beginning and 106.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 186.6MB. Free memory was 106.5MB in the beginning and 105.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 879.43ms. Allocated memory is still 186.6MB. Free memory was 105.3MB in the beginning and 117.8MB in the end (delta: -12.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1533.86ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 117.8MB in the beginning and 158.9MB in the end (delta: -41.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 149.74ms. Allocated memory is still 224.4MB. Free memory was 158.9MB in the beginning and 152.7MB 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! [2023-11-23 20:21:53,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1090655-512d-46c6-b237-098d9d5659ae/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