./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-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_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/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_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/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_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/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 ca1afc44f63014e29f4d580a04a159d6262ad0282ff2401b2251eaa1ef4b4115 --- 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 16:55:33,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:55:33,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:55:33,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:55:33,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:55:33,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:55:33,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:55:33,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:55:33,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:55:33,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:55:33,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:55:33,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:55:33,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:55:33,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:55:33,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:55:33,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:55:33,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:55:33,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:55:33,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:55:34,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:55:34,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:55:34,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:55:34,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:55:34,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:55:34,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:55:34,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:55:34,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:55:34,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:55:34,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:55:34,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:55:34,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:55:34,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:55:34,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:55:34,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:55:34,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:55:34,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:55:34,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:55:34,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:55:34,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:55:34,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:55:34,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:55:34,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:55:34,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:55:34,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:55:34,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:55:34,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:55:34,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:55:34,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:55:34,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:55:34,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:55:34,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:55:34,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:55:34,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:55:34,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:55:34,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:55:34,084 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:55:34,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:55:34,085 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:55:34,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:55:34,085 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:55:34,085 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:55:34,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:55:34,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:55:34,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:55:34,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:55:34,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:55:34,087 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:55:34,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:55:34,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:55:34,088 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_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca1afc44f63014e29f4d580a04a159d6262ad0282ff2401b2251eaa1ef4b4115 [2022-10-17 16:55:34,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:55:34,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:55:34,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:55:34,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:55:34,501 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:55:34,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.c [2022-10-17 16:55:34,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/data/233650049/006a8fac2d4d4aa38a192ec1a16250a6/FLAG1beaaae9c [2022-10-17 16:55:35,055 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:55:35,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.c [2022-10-17 16:55:35,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/data/233650049/006a8fac2d4d4aa38a192ec1a16250a6/FLAG1beaaae9c [2022-10-17 16:55:35,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/data/233650049/006a8fac2d4d4aa38a192ec1a16250a6 [2022-10-17 16:55:35,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:55:35,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:55:35,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:55:35,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:55:35,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:55:35,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3cee8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35, skipping insertion in model container [2022-10-17 16:55:35,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:55:35,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:55:35,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:55:35,652 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:55:35,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:55:35,678 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:55:35,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35 WrapperNode [2022-10-17 16:55:35,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:55:35,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:55:35,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:55:35,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:55:35,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,713 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-10-17 16:55:35,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:55:35,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:55:35,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:55:35,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:55:35,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:55:35,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:55:35,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:55:35,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:55:35,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:35" (1/1) ... [2022-10-17 16:55:35,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:55:35,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:55:35,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:55:35,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:55:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:55:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:55:35,888 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:55:35,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:55:35,983 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:55:36,007 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:55:36,008 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:55:36,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:55:36 BoogieIcfgContainer [2022-10-17 16:55:36,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:55:36,011 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:55:36,012 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:55:36,022 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:55:36,022 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:55:36" (1/1) ... [2022-10-17 16:55:36,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:55:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:55:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-10-17 16:55:36,086 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-10-17 16:55:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:55:36,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:55:36,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:55:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:55:36,227 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 16:55:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:55:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-10-17 16:55:36,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-10-17 16:55:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:55:36,260 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:55:36,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:55:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:55:36,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:55:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:55:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:55:36,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:55:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:55:36,340 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:55:36,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:55:36 ImpRootNode [2022-10-17 16:55:36,363 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:55:36,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:55:36,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:55:36,364 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:55:36,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:55:36" (3/4) ... [2022-10-17 16:55:36,367 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:55:36,425 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:55:36,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:55:36,427 INFO L158 Benchmark]: Toolchain (without parser) took 992.76ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 74.2MB in the end (delta: 14.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-10-17 16:55:36,428 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory was 105.1MB in the beginning and 105.0MB in the end (delta: 140.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:55:36,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.08ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 100.2MB in the end (delta: -12.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:55:36,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.64ms. Allocated memory is still 125.8MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:55:36,432 INFO L158 Benchmark]: Boogie Preprocessor took 20.52ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 97.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:55:36,433 INFO L158 Benchmark]: RCFGBuilder took 274.96ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 88.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:55:36,434 INFO L158 Benchmark]: CodeCheck took 351.86ms. Allocated memory is still 125.8MB. Free memory was 88.8MB in the beginning and 75.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:55:36,435 INFO L158 Benchmark]: Witness Printer took 61.64ms. Allocated memory is still 125.8MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:55:36,442 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 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x >= 0 VAL [x=1073741825] [L18] -2*x VAL [x=1073741825] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory was 105.1MB in the beginning and 105.0MB in the end (delta: 140.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.08ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 100.2MB in the end (delta: -12.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.64ms. Allocated memory is still 125.8MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.52ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 97.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.96ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 88.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 351.86ms. Allocated memory is still 125.8MB. Free memory was 88.8MB in the beginning and 75.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 61.64ms. Allocated memory is still 125.8MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:55:36,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303aea2f-a2e0-482f-b8b7-8cc8e2ddb08a/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)