./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 39d6eb22cab137d4319a78f6cac37de45be9d3d744abdb759734fea0c4fce000 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:58:20,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:58:20,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:58:20,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:58:20,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:58:20,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:58:20,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:58:20,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:58:20,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:58:20,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:58:20,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:58:20,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:58:20,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:58:20,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:58:20,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:58:20,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:58:20,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:58:20,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:58:20,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:58:20,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:58:20,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:58:20,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:58:20,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:58:20,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:58:20,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:58:20,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:58:20,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:58:20,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:58:20,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:58:20,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:58:20,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:58:20,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:58:20,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:58:20,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:58:20,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:58:20,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:58:20,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:58:20,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:58:20,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:58:20,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:58:20,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:58:20,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:58:20,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:58:20,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:58:20,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:58:20,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:58:20,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:58:20,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:58:20,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:58:20,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:58:20,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:58:20,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:58:20,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:58:20,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:58:20,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:58:20,166 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:58:20,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:58:20,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:58:20,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:58:20,166 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:58:20,167 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:58:20,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:58:20,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:20,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:58:20,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:58:20,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:58:20,168 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:58:20,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:58:20,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:58:20,170 INFO L138 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_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39d6eb22cab137d4319a78f6cac37de45be9d3d744abdb759734fea0c4fce000 [2022-10-17 16:58:20,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:58:20,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:58:20,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:58:20,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:58:20,475 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:58:20,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2022-10-17 16:58:20,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/data/8c0a820bf/316460e519d34343a3d24e1b63c8a328/FLAG40e2f937a [2022-10-17 16:58:20,984 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:58:20,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex2.c [2022-10-17 16:58:20,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/data/8c0a820bf/316460e519d34343a3d24e1b63c8a328/FLAG40e2f937a [2022-10-17 16:58:21,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/data/8c0a820bf/316460e519d34343a3d24e1b63c8a328 [2022-10-17 16:58:21,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:58:21,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:58:21,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:21,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:58:21,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:58:21,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607f598a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21, skipping insertion in model container [2022-10-17 16:58:21,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:58:21,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:58:21,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:21,679 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:58:21,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:21,704 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:58:21,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21 WrapperNode [2022-10-17 16:58:21,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:21,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:21,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:58:21,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:58:21,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,735 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2022-10-17 16:58:21,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:21,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:58:21,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:58:21,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:58:21,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:58:21,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:58:21,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:58:21,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:58:21,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:21" (1/1) ... [2022-10-17 16:58:21,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:21,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:58:21,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:58:21,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:58:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-10-17 16:58:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-10-17 16:58:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-10-17 16:58:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-10-17 16:58:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:58:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:58:21,921 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:58:21,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:58:22,117 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:58:22,133 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:58:22,134 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:58:22,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:22 BoogieIcfgContainer [2022-10-17 16:58:22,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:58:22,137 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:58:22,138 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:58:22,161 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:58:22,162 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:22" (1/1) ... [2022-10-17 16:58:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:58:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2022-10-17 16:58:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-10-17 16:58:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:58:22,276 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:58:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2022-10-17 16:58:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-10-17 16:58:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:58:22,626 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:22,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:58:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2022-10-17 16:58:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-10-17 16:58:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:58:22,990 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:58:23,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:58:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:58:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:58:23,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:58:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:58:23,089 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-10-17 16:58:23,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:58:23 ImpRootNode [2022-10-17 16:58:23,127 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:58:23,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:58:23,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:58:23,128 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:58:23,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:22" (3/4) ... [2022-10-17 16:58:23,131 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:58:23,181 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:58:23,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:58:23,182 INFO L158 Benchmark]: Toolchain (without parser) took 1770.14ms. Allocated memory is still 111.1MB. Free memory was 63.9MB in the beginning and 42.3MB in the end (delta: 21.6MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-10-17 16:58:23,183 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 111.1MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:58:23,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.68ms. Allocated memory is still 111.1MB. Free memory was 63.8MB in the beginning and 86.7MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:58:23,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.52ms. Allocated memory is still 111.1MB. Free memory was 86.7MB in the beginning and 85.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:58:23,189 INFO L158 Benchmark]: Boogie Preprocessor took 17.94ms. Allocated memory is still 111.1MB. Free memory was 85.5MB in the beginning and 84.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:58:23,190 INFO L158 Benchmark]: RCFGBuilder took 382.15ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 74.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:58:23,191 INFO L158 Benchmark]: CodeCheck took 989.67ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 43.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-10-17 16:58:23,191 INFO L158 Benchmark]: Witness Printer took 54.08ms. Allocated memory is still 111.1MB. Free memory was 43.6MB in the beginning and 42.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:58:23,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 10 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L30] int i = __VERIFIER_nondet_int(); [L31] int x = __VERIFIER_nondet_int(); [L32] COND TRUE i >= 0 && x >= 0 VAL [i=1, x=2147483647] [L33] CALL f(i,x) VAL [\old(i)=1, \old(x)=2147483647] [L18] COND FALSE !(i==0) VAL [\old(i)=1, \old(x)=2147483647, i=1, x=2147483647] [L21] EXPR i-1 VAL [\old(i)=1, \old(x)=2147483647, i=1, x=2147483647] [L21] CALL g(i-1,x,i) VAL [\old(a)=0, \old(b)=2147483647, \old(c)=1] [L26] b+c VAL [\old(a)=0, \old(b)=2147483647, \old(c)=1, a=0, b=2147483647, c=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 111.1MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.68ms. Allocated memory is still 111.1MB. Free memory was 63.8MB in the beginning and 86.7MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.52ms. Allocated memory is still 111.1MB. Free memory was 86.7MB in the beginning and 85.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.94ms. Allocated memory is still 111.1MB. Free memory was 85.5MB in the beginning and 84.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.15ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 74.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 989.67ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 43.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 54.08ms. Allocated memory is still 111.1MB. Free memory was 43.6MB in the beginning and 42.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:58:23,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938902f-10f5-4fff-a8ad-8a72e93b8de1/bin/ukojak-92XMlrwhuB/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)