./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 cf1a7837 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_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/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_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV --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-cf1a783 [2023-11-11 23:44:28,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:44:28,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:44:28,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:44:28,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:44:28,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:44:28,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:44:28,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:44:28,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:44:28,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:44:28,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:44:28,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:44:28,177 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:44:28,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:44:28,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:44:28,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:44:28,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:44:28,180 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:44:28,180 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:44:28,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:44:28,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:44:28,182 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:44:28,183 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:44:28,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:44:28,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:44:28,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:44:28,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:44:28,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:44:28,186 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:44:28,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:44:28,187 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:44:28,187 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_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 [2023-11-11 23:44:28,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:44:28,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:44:28,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:44:28,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:44:28,486 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:44:28,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2023-11-11 23:44:31,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:44:31,996 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:44:31,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2023-11-11 23:44:32,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/data/2ac3e631e/389dcca628224976b36d5428189c43ae/FLAGd1e61cf9e [2023-11-11 23:44:32,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/data/2ac3e631e/389dcca628224976b36d5428189c43ae [2023-11-11 23:44:32,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:44:32,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:44:32,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:44:32,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:44:32,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:44:32,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d758b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32, skipping insertion in model container [2023-11-11 23:44:32,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,059 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:44:32,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:44:32,229 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:44:32,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:44:32,256 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:44:32,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32 WrapperNode [2023-11-11 23:44:32,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:44:32,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:44:32,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:44:32,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:44:32,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,287 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18 [2023-11-11 23:44:32,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:44:32,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:44:32,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:44:32,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:44:32,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:44:32,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:44:32,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:44:32,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:44:32,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:44:32,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:44:32,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:44:32,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:44:32,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:44:32,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:44:32,398 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2023-11-11 23:44:32,398 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2023-11-11 23:44:32,473 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:44:32,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:44:32,713 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:44:32,743 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:44:32,747 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:44:32,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:44:32 BoogieIcfgContainer [2023-11-11 23:44:32,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:44:32,754 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:44:32,754 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:44:32,767 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:44:32,767 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:44:32" (1/1) ... [2023-11-11 23:44:32,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:44:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2023-11-11 23:44:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-11 23:44:32,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:44:32,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:32,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:44:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:33,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2023-11-11 23:44:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-11 23:44:33,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:44:33,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:33,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:44:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2023-11-11 23:44:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-11 23:44:33,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:44:33,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:33,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:44:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:44:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:44:33,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 34 transitions. [2023-11-11 23:44:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-11 23:44:33,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:44:33,835 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:44:33,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:44:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:33,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:44:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:33,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:44:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:44:33,898 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-11 23:44:33,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:44:33 ImpRootNode [2023-11-11 23:44:33,924 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:44:33,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:44:33,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:44:33,926 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:44:33,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:44:32" (3/4) ... [2023-11-11 23:44:33,927 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-11 23:44:33,966 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:44:33,966 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:44:33,967 INFO L158 Benchmark]: Toolchain (without parser) took 1940.54ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 79.4MB in the beginning and 94.6MB in the end (delta: -15.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-11-11 23:44:33,968 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:44:33,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.84ms. Allocated memory is still 123.7MB. Free memory was 79.2MB in the beginning and 69.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:44:33,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.31ms. Allocated memory is still 123.7MB. Free memory was 69.6MB in the beginning and 68.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:44:33,970 INFO L158 Benchmark]: Boogie Preprocessor took 21.02ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 67.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:33,970 INFO L158 Benchmark]: RCFGBuilder took 442.02ms. Allocated memory is still 123.7MB. Free memory was 67.3MB in the beginning and 57.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:44:33,971 INFO L158 Benchmark]: CodeCheck took 1170.24ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 57.1MB in the beginning and 96.1MB in the end (delta: -38.9MB). Peak memory consumption was 292.9kB. Max. memory is 16.1GB. [2023-11-11 23:44:33,972 INFO L158 Benchmark]: Witness Printer took 41.14ms. Allocated memory is still 161.5MB. Free memory was 96.1MB in the beginning and 94.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:44:33,975 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: 1.1s, 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, 0.2s 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, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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 123.7MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.84ms. Allocated memory is still 123.7MB. Free memory was 79.2MB in the beginning and 69.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.31ms. Allocated memory is still 123.7MB. Free memory was 69.6MB in the beginning and 68.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.02ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 67.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.02ms. Allocated memory is still 123.7MB. Free memory was 67.3MB in the beginning and 57.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1170.24ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 57.1MB in the beginning and 96.1MB in the end (delta: -38.9MB). Peak memory consumption was 292.9kB. Max. memory is 16.1GB. * Witness Printer took 41.14ms. Allocated memory is still 161.5MB. Free memory was 96.1MB in the beginning and 94.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-11 23:44:34,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c930cc7c-f11d-4a80-81a1-a4f8dcb45c0f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)