./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_nondet.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_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/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_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/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_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/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 7291a806fc1bc00c479528361766aa99fd25186e73036697f4b6a2299ee60d16 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:19:56,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:19:57,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:19:57,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:19:57,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:19:57,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:19:57,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:19:57,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:19:57,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:19:57,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:19:57,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:19:57,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:19:57,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:19:57,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:19:57,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:19:57,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:19:57,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:19:57,211 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:19:57,211 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:19:57,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:19:57,212 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:19:57,213 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:19:57,214 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:19:57,215 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:19:57,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:19:57,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:19:57,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:19:57,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:19:57,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:19:57,219 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:19:57,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:19:57,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:19:57,220 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_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7291a806fc1bc00c479528361766aa99fd25186e73036697f4b6a2299ee60d16 [2023-11-19 03:19:57,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:19:57,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:19:57,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:19:57,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:19:57,608 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:19:57,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c [2023-11-19 03:20:01,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:20:01,484 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:20:01,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/sv-benchmarks/c/termination-crafted/Cairo_nondet.c [2023-11-19 03:20:01,494 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/data/ba0562b58/a99cfabeb4924d9193ed0eeebdd715a0/FLAGf5fe1d856 [2023-11-19 03:20:01,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/data/ba0562b58/a99cfabeb4924d9193ed0eeebdd715a0 [2023-11-19 03:20:01,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:20:01,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:20:01,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:01,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:20:01,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:20:01,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d97445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01, skipping insertion in model container [2023-11-19 03:20:01,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,552 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:20:01,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:01,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:20:01,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:01,725 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:20:01,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01 WrapperNode [2023-11-19 03:20:01,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:01,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:01,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:20:01,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:20:01,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,756 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-19 03:20:01,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:01,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:20:01,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:20:01,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:20:01,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:20:01,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:20:01,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:20:01,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:20:01,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:01" (1/1) ... [2023-11-19 03:20:01,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:20:01,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:20:01,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:20:01,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:20:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:20:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:20:01,939 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:20:01,941 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:20:02,053 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:20:02,071 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:20:02,071 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:20:02,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:02 BoogieIcfgContainer [2023-11-19 03:20:02,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:20:02,077 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:20:02,077 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:20:02,088 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:20:02,089 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:02" (1/1) ... [2023-11-19 03:20:02,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:20:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-19 03:20:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-19 03:20:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:20:02,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:02,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:02,324 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 03:20:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-19 03:20:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 03:20:02,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:20:02,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:02,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:02,504 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 03:20:02,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-19 03:20:02,739 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-19 03:20:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:20:02,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:20:02,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:20:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:20:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:20:02,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:20:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:20:02,832 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 03:20:02,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:20:02 ImpRootNode [2023-11-19 03:20:02,859 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:20:02,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:20:02,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:20:02,860 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:20:02,860 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:02" (3/4) ... [2023-11-19 03:20:02,863 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:20:02,916 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:20:02,916 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:20:02,917 INFO L158 Benchmark]: Toolchain (without parser) took 1398.90ms. Allocated memory is still 172.0MB. Free memory was 126.1MB in the beginning and 130.3MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:02,917 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 121.6MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:02,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.50ms. Allocated memory is still 172.0MB. Free memory was 126.1MB in the beginning and 116.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:20:02,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 172.0MB. Free memory was 116.6MB in the beginning and 115.6MB in the end (delta: 994.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:20:02,919 INFO L158 Benchmark]: Boogie Preprocessor took 18.54ms. Allocated memory is still 172.0MB. Free memory was 115.1MB in the beginning and 114.5MB in the end (delta: 552.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:02,919 INFO L158 Benchmark]: RCFGBuilder took 299.09ms. Allocated memory is still 172.0MB. Free memory was 114.5MB in the beginning and 105.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:20:02,920 INFO L158 Benchmark]: CodeCheck took 781.94ms. Allocated memory is still 172.0MB. Free memory was 105.1MB in the beginning and 132.4MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:02,920 INFO L158 Benchmark]: Witness Printer took 57.02ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 130.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:20:02,923 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 0 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int x; [L14] x = __VERIFIER_nondet_int() [L15] COND TRUE x > __VERIFIER_nondet_int() [L16] COND TRUE x != 0 VAL [x=-2147483647] [L17] EXPR x - 1 [L17] x = x - 1 VAL [x=-2147483648] [L16] COND TRUE x != 0 VAL [x=-2147483648] [L17] x - 1 VAL [x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 121.6MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.50ms. Allocated memory is still 172.0MB. Free memory was 126.1MB in the beginning and 116.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 172.0MB. Free memory was 116.6MB in the beginning and 115.6MB in the end (delta: 994.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.54ms. Allocated memory is still 172.0MB. Free memory was 115.1MB in the beginning and 114.5MB in the end (delta: 552.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.09ms. Allocated memory is still 172.0MB. Free memory was 114.5MB in the beginning and 105.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 781.94ms. Allocated memory is still 172.0MB. Free memory was 105.1MB in the beginning and 132.4MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.02ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 130.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:20:02,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9cde30f-39e5-46c0-9ba5-79675d0f9ee2/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)