./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9 --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 5b2cdb0a3d393975263e2847e46e1970d84afe1f3be1a558d3a52fc861b80ea1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:31:31,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:31:31,659 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:31:31,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:31:31,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:31:31,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:31:31,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:31:31,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:31:31,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:31:31,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:31:31,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:31:31,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:31:31,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:31:31,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:31:31,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:31:31,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:31:31,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:31:31,693 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:31:31,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:31:31,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:31:31,695 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:31:31,696 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:31:31,696 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:31:31,697 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:31:31,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:31:31,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:31:31,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:31:31,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:31:31,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:31:31,700 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:31:31,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:31:31,701 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:31:31,701 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_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b2cdb0a3d393975263e2847e46e1970d84afe1f3be1a558d3a52fc861b80ea1 [2023-12-03 03:31:31,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:31:31,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:31:31,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:31:31,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:31:31,957 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:31:31,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i [2023-12-03 03:31:34,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:31:34,991 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:31:34,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_good.i [2023-12-03 03:31:35,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/data/3e422c1bb/bf1bd8f9399d4242a9fe49ad16118c77/FLAGd27980c53 [2023-12-03 03:31:35,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/data/3e422c1bb/bf1bd8f9399d4242a9fe49ad16118c77 [2023-12-03 03:31:35,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:31:35,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:31:35,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:31:35,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:31:35,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:31:35,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:31:35" (1/1) ... [2023-12-03 03:31:35,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcfb87b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:35, skipping insertion in model container [2023-12-03 03:31:35,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:31:35" (1/1) ... [2023-12-03 03:31:35,109 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:31:35,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:31:35,880 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:31:35,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:31:36,125 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:31:36,125 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:31:36,125 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:31:36,125 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:31:36,131 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:31:36,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36 WrapperNode [2023-12-03 03:31:36,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:31:36,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:31:36,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:31:36,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:31:36,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,203 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 203 [2023-12-03 03:31:36,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:31:36,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:31:36,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:31:36,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:31:36,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:31:36,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:31:36,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:31:36,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:31:36,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:31:36" (1/1) ... [2023-12-03 03:31:36,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:31:36,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:31:36,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:31:36,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:31:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 03:31:36,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 03:31:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:31:36,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:31:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:31:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:31:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:31:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:31:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:31:36,471 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:31:36,473 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:31:36,755 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:31:37,074 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:31:37,074 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-03 03:31:37,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:31:37 BoogieIcfgContainer [2023-12-03 03:31:37,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:31:37,077 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:31:37,077 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:31:37,087 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:31:37,088 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:31:37" (1/1) ... [2023-12-03 03:31:37,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:31:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2023-12-03 03:31:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2023-12-03 03:31:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:31:37,157 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:37,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:31:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 47 states and 59 transitions. [2023-12-03 03:31:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2023-12-03 03:31:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 03:31:37,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:37,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:31:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 58 transitions. [2023-12-03 03:31:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-12-03 03:31:37,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:31:37,676 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:37,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 03:31:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 45 states and 56 transitions. [2023-12-03 03:31:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-12-03 03:31:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:31:37,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:37,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 03:31:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 44 states and 55 transitions. [2023-12-03 03:31:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-12-03 03:31:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 03:31:38,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:38,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:31:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:38,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 49 transitions. [2023-12-03 03:31:38,105 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-12-03 03:31:38,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 03:31:38,106 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:31:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 40 states and 48 transitions. [2023-12-03 03:31:38,237 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-12-03 03:31:38,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 03:31:38,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:38,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:31:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 46 transitions. [2023-12-03 03:31:38,368 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-12-03 03:31:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 03:31:38,370 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:31:38,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:31:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 03:31:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:31:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 45 transitions. [2023-12-03 03:31:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-12-03 03:31:38,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:31:38,532 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 03:31:38,540 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 03:31:38,585 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:31:38,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:31:38 ImpRootNode [2023-12-03 03:31:38,589 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:31:38,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:31:38,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:31:38,590 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:31:38,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:31:37" (3/4) ... [2023-12-03 03:31:38,592 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:31:38,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 03:31:38,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 03:31:38,603 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2023-12-03 03:31:38,604 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-03 03:31:38,605 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 03:31:38,605 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:31:38,702 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:31:38,702 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:31:38,702 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:31:38,703 INFO L158 Benchmark]: Toolchain (without parser) took 3669.76ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 96.2MB in the end (delta: 6.8MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,703 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 146.8MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:31:38,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1097.56ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 133.5MB in the end (delta: -30.5MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.12ms. Allocated memory is still 178.3MB. Free memory was 133.5MB in the beginning and 129.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,705 INFO L158 Benchmark]: Boogie Preprocessor took 35.43ms. Allocated memory is still 178.3MB. Free memory was 129.3MB in the beginning and 127.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,705 INFO L158 Benchmark]: RCFGBuilder took 835.85ms. Allocated memory is still 178.3MB. Free memory was 127.2MB in the beginning and 122.6MB in the end (delta: 4.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,706 INFO L158 Benchmark]: CodeCheck took 1512.51ms. Allocated memory is still 178.3MB. Free memory was 122.6MB in the beginning and 103.5MB in the end (delta: 19.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,706 INFO L158 Benchmark]: Witness Printer took 112.48ms. Allocated memory is still 178.3MB. Free memory was 103.5MB in the beginning and 96.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 03:31:38,707 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, 50 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 448 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 198 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 954 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 28/28 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: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1646]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 146.8MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1097.56ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 133.5MB in the end (delta: -30.5MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.12ms. Allocated memory is still 178.3MB. Free memory was 133.5MB in the beginning and 129.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.43ms. Allocated memory is still 178.3MB. Free memory was 129.3MB in the beginning and 127.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.85ms. Allocated memory is still 178.3MB. Free memory was 127.2MB in the beginning and 122.6MB in the end (delta: 4.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. * CodeCheck took 1512.51ms. Allocated memory is still 178.3MB. Free memory was 122.6MB in the beginning and 103.5MB in the end (delta: 19.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 112.48ms. Allocated memory is still 178.3MB. Free memory was 103.5MB in the beginning and 96.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 03:31:38,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ab166c-515c-46fb-85d3-76bcbab41eb7/bin/ukojak-verify-Qdu7aM0XO9/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