./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/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_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/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_170ac2cd-667a-401e-92e9-459a35e0de23/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 b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:16,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:16,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:00:16,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:16,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:16,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:16,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:16,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:16,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:16,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:16,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:16,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:16,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:16,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:16,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:16,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:16,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:16,558 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:00:16,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:00:16,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:16,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:16,562 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:16,562 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:16,563 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:16,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:16,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:16,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:16,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:16,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:16,565 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:16,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:16,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:16,567 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_170ac2cd-667a-401e-92e9-459a35e0de23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 [2023-11-19 04:00:16,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:16,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:16,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:16,854 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:16,855 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:16,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2023-11-19 04:00:20,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:20,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:20,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2023-11-19 04:00:20,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/data/469006b98/ab6fc5a965f64974948466adb2650ac5/FLAG373906982 [2023-11-19 04:00:20,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/data/469006b98/ab6fc5a965f64974948466adb2650ac5 [2023-11-19 04:00:20,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:20,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:20,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:20,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:20,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:20,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675a148f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20, skipping insertion in model container [2023-11-19 04:00:20,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:20,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:20,569 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:20,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:20,602 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:20,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20 WrapperNode [2023-11-19 04:00:20,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:20,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:20,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:20,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:20,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,638 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18 [2023-11-19 04:00:20,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:20,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:20,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:20,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:20,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:20,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:20,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:20,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:20,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:20" (1/1) ... [2023-11-19 04:00:20,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:20,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:20,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:20,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2023-11-19 04:00:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2023-11-19 04:00:20,838 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:20,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:21,053 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:21,079 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:21,080 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:00:21,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:21 BoogieIcfgContainer [2023-11-19 04:00:21,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:21,101 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:21,101 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:21,112 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:21,112 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:21" (1/1) ... [2023-11-19 04:00:21,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:21,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2023-11-19 04:00:21,188 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-19 04:00:21,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:00:21,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:21,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:21,432 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 04:00:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2023-11-19 04:00:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-19 04:00:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:00:21,533 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:21,673 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 04:00:22,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2023-11-19 04:00:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-19 04:00:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:00:22,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:22,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:22,112 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 04:00:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 34 transitions. [2023-11-19 04:00:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-19 04:00:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:00:22,212 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:22,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:00:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:22,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:00:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:22,301 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-19 04:00:22,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:22 ImpRootNode [2023-11-19 04:00:22,343 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:22,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:22,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:22,345 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:22,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:21" (3/4) ... [2023-11-19 04:00:22,346 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:00:22,407 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:00:22,408 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:22,409 INFO L158 Benchmark]: Toolchain (without parser) took 2070.86ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 69.9MB in the beginning and 73.2MB in the end (delta: -3.4MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-11-19 04:00:22,409 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:22,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.73ms. Allocated memory is still 113.2MB. Free memory was 69.6MB in the beginning and 60.3MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:22,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.59ms. Allocated memory is still 113.2MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:22,416 INFO L158 Benchmark]: Boogie Preprocessor took 31.20ms. Allocated memory is still 113.2MB. Free memory was 58.8MB in the beginning and 57.9MB in the end (delta: 867.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:22,418 INFO L158 Benchmark]: RCFGBuilder took 417.75ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 57.9MB in the beginning and 113.0MB in the end (delta: -55.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-19 04:00:22,420 INFO L158 Benchmark]: CodeCheck took 1242.18ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 75.4MB in the end (delta: 40.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 04:00:22,420 INFO L158 Benchmark]: Witness Printer took 63.95ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 73.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:22,424 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 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 22 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L28] CALL rev(ls) [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.73ms. Allocated memory is still 113.2MB. Free memory was 69.6MB in the beginning and 60.3MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.59ms. Allocated memory is still 113.2MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.20ms. Allocated memory is still 113.2MB. Free memory was 58.8MB in the beginning and 57.9MB in the end (delta: 867.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.75ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 57.9MB in the beginning and 113.0MB in the end (delta: -55.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * CodeCheck took 1242.18ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 75.4MB in the end (delta: 40.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 63.95ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 73.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:00:22,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170ac2cd-667a-401e-92e9-459a35e0de23/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)