./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a9cbe3e58574a2b56d3d335c5b4958e551132a9e304bccb7a7e7d2dbf3ca7df --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:07:51,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:07:51,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:07:51,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:07:51,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:07:51,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:07:51,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:07:51,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:07:51,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:07:51,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:07:51,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:07:51,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:07:51,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:07:51,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:07:51,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:07:51,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:07:51,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:07:51,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:07:51,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:07:51,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:07:51,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:07:51,767 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:07:51,768 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:07:51,768 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:07:51,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:07:51,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:51,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:07:51,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:07:51,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:07:51,771 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:07:51,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:07:51,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:07:51,772 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_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a9cbe3e58574a2b56d3d335c5b4958e551132a9e304bccb7a7e7d2dbf3ca7df [2023-11-24 23:07:52,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:07:52,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:07:52,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:07:52,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:07:52,083 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:07:52,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_good.i [2023-11-24 23:07:55,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:07:55,652 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:07:55,653 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_good.i [2023-11-24 23:07:55,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/data/5375e85ea/12138dbd840743f488ef0679474281af/FLAGb8b759ea4 [2023-11-24 23:07:55,694 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/data/5375e85ea/12138dbd840743f488ef0679474281af [2023-11-24 23:07:55,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:07:55,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:07:55,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:55,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:07:55,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:07:55,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3d13c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55, skipping insertion in model container [2023-11-24 23:07:55,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:07:56,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:56,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:07:56,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:56,929 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:07:56,929 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:07:56,930 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:07:56,930 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:07:56,938 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:07:56,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56 WrapperNode [2023-11-24 23:07:56,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:56,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:56,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:07:56,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:07:56,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,037 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 191 [2023-11-24 23:07:57,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:57,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:07:57,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:07:57,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:07:57,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:07:57,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:07:57,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:07:57,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:07:57,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:57,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:57,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:07:57,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:07:57,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:07:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:07:57,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:07:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:07:57,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:07:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:07:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:07:57,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:07:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:07:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:07:57,365 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:07:57,368 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:07:57,776 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:07:58,239 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:07:58,240 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:07:58,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:58 BoogieIcfgContainer [2023-11-24 23:07:58,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:07:58,243 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:07:58,243 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:07:58,253 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:07:58,254 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:58" (1/1) ... [2023-11-24 23:07:58,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:07:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2023-11-24 23:07:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-11-24 23:07:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:07:58,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:58,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2023-11-24 23:07:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-11-24 23:07:58,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:07:58,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:58,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 51 states and 65 transitions. [2023-11-24 23:07:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-24 23:07:59,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:07:59,405 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:07:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 61 transitions. [2023-11-24 23:07:59,580 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-11-24 23:07:59,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:07:59,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:59,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:07:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 48 states and 60 transitions. [2023-11-24 23:07:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-11-24 23:07:59,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:07:59,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:59,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:08:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 48 states and 61 transitions. [2023-11-24 23:08:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-11-24 23:08:00,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:08:00,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:00,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:08:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:00,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 49 states and 61 transitions. [2023-11-24 23:08:00,454 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-11-24 23:08:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:08:00,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:00,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 47 states and 58 transitions. [2023-11-24 23:08:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2023-11-24 23:08:00,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 23:08:00,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:08:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:00,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 49 states and 62 transitions. [2023-11-24 23:08:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-11-24 23:08:00,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:08:00,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:00,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:08:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 52 states and 67 transitions. [2023-11-24 23:08:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-11-24 23:08:01,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:08:01,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:01,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:01,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:08:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:01,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 55 states and 70 transitions. [2023-11-24 23:08:01,330 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-24 23:08:01,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:08:01,332 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:01,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:08:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:01,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 51 transitions. [2023-11-24 23:08:01,596 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-11-24 23:08:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:08:01,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:01,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:08:02,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 42 states and 50 transitions. [2023-11-24 23:08:02,017 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-11-24 23:08:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:08:02,020 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:02,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:08:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 41 states and 49 transitions. [2023-11-24 23:08:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-11-24 23:08:02,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:08:02,335 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2023-11-24 23:08:02,345 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-24 23:08:02,476 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:08:02,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:08:02 ImpRootNode [2023-11-24 23:08:02,483 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:08:02,483 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:08:02,483 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:08:02,484 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:08:02,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:58" (3/4) ... [2023-11-24 23:08:02,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:08:02,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 23:08:02,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 23:08:02,508 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2023-11-24 23:08:02,509 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 23:08:02,510 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:08:02,511 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:08:02,681 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:08:02,685 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:08:02,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:08:02,686 INFO L158 Benchmark]: Toolchain (without parser) took 6988.27ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 89.8MB in the beginning and 76.1MB in the end (delta: 13.8MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,688 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:02,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1239.46ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 89.8MB in the beginning and 106.9MB in the end (delta: -17.1MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.40ms. Allocated memory is still 176.2MB. Free memory was 106.9MB in the beginning and 103.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,689 INFO L158 Benchmark]: Boogie Preprocessor took 59.05ms. Allocated memory is still 176.2MB. Free memory was 103.2MB in the beginning and 101.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,689 INFO L158 Benchmark]: RCFGBuilder took 1143.51ms. Allocated memory is still 176.2MB. Free memory was 101.1MB in the beginning and 84.2MB in the end (delta: 16.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,690 INFO L158 Benchmark]: CodeCheck took 4240.21ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 84.2MB in the beginning and 83.4MB in the end (delta: 792.1kB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,690 INFO L158 Benchmark]: Witness Printer took 202.54ms. Allocated memory is still 211.8MB. Free memory was 83.4MB in the beginning and 76.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:08:02,693 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, 53 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1349 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 977 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 258 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 992 IncrementalHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 258 mSolverCounterUnsat, 763 mSDtfsCounter, 992 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2046 GetRequests, 1996 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 501 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 44/44 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: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: 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: 1642]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1239.46ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 89.8MB in the beginning and 106.9MB in the end (delta: -17.1MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.40ms. Allocated memory is still 176.2MB. Free memory was 106.9MB in the beginning and 103.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.05ms. Allocated memory is still 176.2MB. Free memory was 103.2MB in the beginning and 101.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1143.51ms. Allocated memory is still 176.2MB. Free memory was 101.1MB in the beginning and 84.2MB in the end (delta: 16.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * CodeCheck took 4240.21ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 84.2MB in the beginning and 83.4MB in the end (delta: 792.1kB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 202.54ms. Allocated memory is still 211.8MB. Free memory was 83.4MB in the beginning and 76.1MB 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! [2023-11-24 23:08:02,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5e39a0-d717-4ee5-9c02-25f03529618b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE