./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.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_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/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_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/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_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/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 75c77784640a1236b85c33567209079138fc6d25915cbea50e6b8364ebae6f68 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:15:17,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:15:18,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:15:18,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:15:18,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:15:18,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:15:18,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:15:18,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:15:18,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:15:18,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:15:18,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:15:18,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:15:18,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:15:18,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:15:18,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:15:18,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:15:18,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:15:18,095 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:15:18,096 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:15:18,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:15:18,097 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:15:18,097 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:15:18,098 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:15:18,098 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:15:18,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:15:18,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:15:18,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:15:18,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:15:18,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:15:18,101 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:15:18,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:15:18,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:15:18,103 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_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c77784640a1236b85c33567209079138fc6d25915cbea50e6b8364ebae6f68 [2023-11-19 03:15:18,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:15:18,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:15:18,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:15:18,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:15:18,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:15:18,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c [2023-11-19 03:15:21,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:15:21,829 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:15:21,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c [2023-11-19 03:15:21,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/data/eb8e124f5/a280a302e7f147b49db72481a3e6f0a0/FLAG0b986197f [2023-11-19 03:15:21,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/data/eb8e124f5/a280a302e7f147b49db72481a3e6f0a0 [2023-11-19 03:15:21,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:15:21,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:15:21,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:15:21,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:15:21,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:15:21,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:15:21" (1/1) ... [2023-11-19 03:15:21,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c5daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:21, skipping insertion in model container [2023-11-19 03:15:21,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:15:21" (1/1) ... [2023-11-19 03:15:21,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:15:22,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:15:22,031 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:15:22,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:15:22,055 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:15:22,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22 WrapperNode [2023-11-19 03:15:22,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:15:22,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:15:22,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:15:22,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:15:22,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,088 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2023-11-19 03:15:22,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:15:22,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:15:22,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:15:22,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:15:22,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:15:22,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:15:22,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:15:22,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:15:22,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:15:22,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:15:22,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:15:22,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:15:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:15:22,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:15:22,296 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:15:22,299 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:15:22,511 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:15:22,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:15:22,530 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:15:22,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:22 BoogieIcfgContainer [2023-11-19 03:15:22,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:15:22,536 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:15:22,537 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:15:22,547 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:15:22,548 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:22" (1/1) ... [2023-11-19 03:15:22,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:15:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2023-11-19 03:15:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-19 03:15:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:15:22,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:22,850 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 03:15:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:22,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:15:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:15:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:15:22,920 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:22,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:22,953 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 03:15:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-11-19 03:15:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-19 03:15:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:15:22,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:15:23,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:15:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:15:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:15:23,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:15:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:15:23,045 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 03:15:23,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:15:23 ImpRootNode [2023-11-19 03:15:23,083 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:15:23,084 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:15:23,084 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:15:23,085 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:15:23,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:15:22" (3/4) ... [2023-11-19 03:15:23,086 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:15:23,121 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:15:23,121 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:15:23,123 INFO L158 Benchmark]: Toolchain (without parser) took 1267.23ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 91.4MB in the beginning and 164.4MB in the end (delta: -73.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:15:23,123 INFO L158 Benchmark]: CDTParser took 1.15ms. Allocated memory is still 130.0MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:15:23,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.81ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 81.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:15:23,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.99ms. Allocated memory is still 130.0MB. Free memory was 81.8MB in the beginning and 80.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:15:23,125 INFO L158 Benchmark]: Boogie Preprocessor took 20.05ms. Allocated memory is still 130.0MB. Free memory was 80.6MB in the beginning and 79.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:15:23,126 INFO L158 Benchmark]: RCFGBuilder took 426.14ms. Allocated memory is still 130.0MB. Free memory was 79.3MB in the beginning and 68.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:15:23,127 INFO L158 Benchmark]: CodeCheck took 547.25ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 68.8MB in the beginning and 166.4MB in the end (delta: -97.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:15:23,127 INFO L158 Benchmark]: Witness Printer took 37.38ms. Allocated memory is still 197.1MB. Free memory was 166.4MB in the beginning and 164.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:15:23,131 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, 23 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 12 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] x = __VERIFIER_nondet_int() [L14] COND TRUE x >= 0 [L15] COND TRUE __VERIFIER_nondet_int() != 0 [L16] x + 1 VAL [x=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15ms. Allocated memory is still 130.0MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.81ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 81.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.99ms. Allocated memory is still 130.0MB. Free memory was 81.8MB in the beginning and 80.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.05ms. Allocated memory is still 130.0MB. Free memory was 80.6MB in the beginning and 79.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.14ms. Allocated memory is still 130.0MB. Free memory was 79.3MB in the beginning and 68.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 547.25ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 68.8MB in the beginning and 166.4MB in the end (delta: -97.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.38ms. Allocated memory is still 197.1MB. Free memory was 166.4MB in the beginning and 164.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:15:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2e7fb5-4d41-4e65-af5c-45b2ce9ff289/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)