./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL --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 39d6eb22cab137d4319a78f6cac37de45be9d3d744abdb759734fea0c4fce000 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:14:46,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:14:46,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:14:46,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:14:46,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:14:46,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:14:46,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:14:46,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:14:46,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:14:46,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:14:46,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:14:46,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:14:46,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:14:46,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:14:46,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:14:46,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:14:46,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:14:46,967 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:14:46,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:14:46,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:14:46,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:14:46,970 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:14:46,971 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:14:46,971 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:14:46,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:14:46,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:14:46,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:14:46,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:14:46,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:14:46,997 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:14:46,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:14:46,999 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:14:46,999 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_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39d6eb22cab137d4319a78f6cac37de45be9d3d744abdb759734fea0c4fce000 [2023-11-19 03:14:47,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:14:47,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:14:47,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:14:47,364 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:14:47,365 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:14:47,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2023-11-19 03:14:50,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:14:51,303 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:14:51,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2023-11-19 03:14:51,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/data/40b0020a2/9c027f316d7649968768e94a7b46a047/FLAG4513e4233 [2023-11-19 03:14:51,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/data/40b0020a2/9c027f316d7649968768e94a7b46a047 [2023-11-19 03:14:51,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:14:51,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:14:51,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:14:51,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:14:51,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:14:51,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1638dd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51, skipping insertion in model container [2023-11-19 03:14:51,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:14:51,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:14:51,553 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:14:51,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:14:51,581 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:14:51,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51 WrapperNode [2023-11-19 03:14:51,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:14:51,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:14:51,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:14:51,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:14:51,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,614 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2023-11-19 03:14:51,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:14:51,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:14:51,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:14:51,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:14:51,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:14:51,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:14:51,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:14:51,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:14:51,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:14:51,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:14:51,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:14:51,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:14:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-19 03:14:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-19 03:14:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure g [2023-11-19 03:14:51,730 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2023-11-19 03:14:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:14:51,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:14:51,797 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:14:51,799 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:14:51,943 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:14:51,966 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:14:51,966 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:14:51,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:51 BoogieIcfgContainer [2023-11-19 03:14:51,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:14:51,973 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:14:51,973 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:14:51,985 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:14:51,985 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:51" (1/1) ... [2023-11-19 03:14:51,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:14:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2023-11-19 03:14:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-19 03:14:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:14:52,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:52,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:14:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2023-11-19 03:14:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-19 03:14:52,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:14:52,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:14:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2023-11-19 03:14:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-19 03:14:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:14:52,851 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:14:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 47 transitions. [2023-11-19 03:14:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-11-19 03:14:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:14:54,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:54,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:14:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:14:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,301 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-19 03:14:54,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:14:54 ImpRootNode [2023-11-19 03:14:54,330 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:14:54,331 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:14:54,331 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:14:54,331 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:14:54,332 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:51" (3/4) ... [2023-11-19 03:14:54,333 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:14:54,377 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:14:54,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:14:54,378 INFO L158 Benchmark]: Toolchain (without parser) took 3040.20ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 107.1MB in the end (delta: 32.7MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,379 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 172.0MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:14:54,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.67ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 130.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.15ms. Allocated memory is still 172.0MB. Free memory was 130.3MB in the beginning and 128.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,381 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 127.9MB in the end (delta: 974.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:14:54,382 INFO L158 Benchmark]: RCFGBuilder took 332.95ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 117.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,383 INFO L158 Benchmark]: CodeCheck took 2357.62ms. Allocated memory is still 172.0MB. Free memory was 117.1MB in the beginning and 108.7MB in the end (delta: 8.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,384 INFO L158 Benchmark]: Witness Printer took 46.35ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 107.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,389 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, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 28 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L30] int i = __VERIFIER_nondet_int(); [L31] int x = __VERIFIER_nondet_int(); [L32] COND TRUE i >= 0 && x >= 0 VAL [i=1, x=2147483647] [L33] CALL f(i,x) VAL [\old(i)=1, \old(x)=2147483647] [L18] COND FALSE !(i==0) VAL [\old(i)=1, \old(x)=2147483647, i=1, x=2147483647] [L21] EXPR i-1 VAL [\old(i)=1, \old(x)=2147483647, i=1, x=2147483647] [L21] CALL g(i-1,x,i) VAL [\old(a)=0, \old(b)=2147483647, \old(c)=1] [L26] b+c VAL [\old(a)=0, \old(b)=2147483647, \old(c)=1, a=0, b=2147483647, c=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 172.0MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.67ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 130.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.15ms. Allocated memory is still 172.0MB. Free memory was 130.3MB in the beginning and 128.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 127.9MB in the end (delta: 974.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.95ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 117.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2357.62ms. Allocated memory is still 172.0MB. Free memory was 117.1MB in the beginning and 108.7MB in the end (delta: 8.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 46.35ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 107.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:14:54,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_160f69f2-05a5-4c84-915f-5dcb743aebaa/bin/ukojak-verify-G8NBE6pJGL/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)