./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/lcm2-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-nla/lcm2-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2 --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 32bit --witnessprinter.graph.data.programhash c2e3639073418bb6e86bec4d3a07ea2eb72b681bce70454dba8870b60fba9904 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:33:27,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:33:27,990 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:33:27,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:33:27,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:33:28,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:33:28,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:33:28,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:33:28,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:33:28,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:33:28,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:33:28,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:33:28,033 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:33:28,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:33:28,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:33:28,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:33:28,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:33:28,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:33:28,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:33:28,044 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:33:28,044 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:33:28,045 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:33:28,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:33:28,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:33:28,046 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:33:28,047 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:33:28,047 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:33:28,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:33:28,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:33:28,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:33:28,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:33:28,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:33:28,057 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:33:28,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:33:28,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:33:28,059 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_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2e3639073418bb6e86bec4d3a07ea2eb72b681bce70454dba8870b60fba9904 [2023-11-21 18:33:28,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:33:28,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:33:28,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:33:28,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:33:28,481 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:33:28,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-nla/lcm2-both-nt.c [2023-11-21 18:33:31,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:33:32,154 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:33:32,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/sv-benchmarks/c/termination-nla/lcm2-both-nt.c [2023-11-21 18:33:32,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/data/5e2c2ce0b/5482dd03c0bc4515948cc70cadb38288/FLAG5a5ea394f [2023-11-21 18:33:32,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/data/5e2c2ce0b/5482dd03c0bc4515948cc70cadb38288 [2023-11-21 18:33:32,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:33:32,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:33:32,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:33:32,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:33:32,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:33:32,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7a6cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32, skipping insertion in model container [2023-11-21 18:33:32,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,222 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:33:32,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:33:32,438 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:33:32,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:33:32,483 WARN L675 CHandler]: The function __VERIFIER_nondet_unsigned_int is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:33:32,492 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:33:32,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32 WrapperNode [2023-11-21 18:33:32,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:33:32,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:33:32,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:33:32,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:33:32,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,538 INFO L138 Inliner]: procedures = 4, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-11-21 18:33:32,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:33:32,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:33:32,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:33:32,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:33:32,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:33:32,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:33:32,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:33:32,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:33:32,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:33:32" (1/1) ... [2023-11-21 18:33:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:33:32,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:33:32,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:33:32,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:33:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:33:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:33:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2023-11-21 18:33:32,748 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:33:32,750 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:33:33,037 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:33:33,074 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:33:33,074 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:33:33,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:33:33 BoogieIcfgContainer [2023-11-21 18:33:33,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:33:33,077 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:33:33,077 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:33:33,088 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:33:33,089 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:33:33" (1/1) ... [2023-11-21 18:33:33,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:33:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:33:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 44 states and 47 transitions. [2023-11-21 18:33:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2023-11-21 18:33:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:33:33,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:33:33,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:33:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:33:33,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:33:33,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:33:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:33:33,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:33:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 46 states and 50 transitions. [2023-11-21 18:33:33,672 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-11-21 18:33:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:33:33,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:33:33,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:33:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:33:33,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:33:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:33:33,823 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:33:33,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:33:33 ImpRootNode [2023-11-21 18:33:33,846 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:33:33,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:33:33,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:33:33,848 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:33:33,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:33:33" (3/4) ... [2023-11-21 18:33:33,849 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:33:33,910 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:33:33,910 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:33:33,911 INFO L158 Benchmark]: Toolchain (without parser) took 1724.33ms. Allocated memory is still 134.2MB. Free memory was 102.6MB in the beginning and 105.3MB in the end (delta: -2.7MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2023-11-21 18:33:33,911 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:33:33,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.76ms. Allocated memory is still 134.2MB. Free memory was 102.1MB in the beginning and 92.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:33:33,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.30ms. Allocated memory is still 134.2MB. Free memory was 92.5MB in the beginning and 91.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:33:33,913 INFO L158 Benchmark]: Boogie Preprocessor took 48.01ms. Allocated memory is still 134.2MB. Free memory was 91.0MB in the beginning and 90.1MB in the end (delta: 910.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:33:33,913 INFO L158 Benchmark]: RCFGBuilder took 488.49ms. Allocated memory is still 134.2MB. Free memory was 90.1MB in the beginning and 77.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:33:33,914 INFO L158 Benchmark]: CodeCheck took 769.51ms. Allocated memory is still 134.2MB. Free memory was 77.1MB in the beginning and 52.8MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 18:33:33,914 INFO L158 Benchmark]: Witness Printer took 62.73ms. Allocated memory is still 134.2MB. Free memory was 52.8MB in the beginning and 105.3MB in the end (delta: -52.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-21 18:33:33,917 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 1 procedures, 44 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 2 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int a, b; [L21] int x, y, u, v; [L22] a = __VERIFIER_nondet_unsigned_int() [L23] b = __VERIFIER_nondet_unsigned_int() [L30] COND FALSE !(a < 1 || b < 1 || a > 65535 || b > 65535) [L34] x = a [L35] y = b [L36] u = b [L37] v = a VAL [a=65535, b=32769, u=32769, v=65535, x=65535, y=32769] [L39] COND TRUE 1 VAL [a=65535, b=32769, u=32769, v=65535, x=65535, y=32769] [L42] x*u VAL [a=65535, b=32769, u=32769, v=65535, x=65535, y=32769] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.76ms. Allocated memory is still 134.2MB. Free memory was 102.1MB in the beginning and 92.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.30ms. Allocated memory is still 134.2MB. Free memory was 92.5MB in the beginning and 91.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.01ms. Allocated memory is still 134.2MB. Free memory was 91.0MB in the beginning and 90.1MB in the end (delta: 910.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 488.49ms. Allocated memory is still 134.2MB. Free memory was 90.1MB in the beginning and 77.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 769.51ms. Allocated memory is still 134.2MB. Free memory was 77.1MB in the beginning and 52.8MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 62.73ms. Allocated memory is still 134.2MB. Free memory was 52.8MB in the beginning and 105.3MB in the end (delta: -52.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:33:33,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c215c60-30a4-42ce-8b5d-3250ee16137b/bin/ukojak-verify-i0I2FZA1j2/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)