./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.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_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/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_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/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_da698636-086a-4954-bfc0-0b89e7ffbf27/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 ab66f9f89348f915f5a709aa03ac6e16c276dad15b53c460d26f0885e78d4ce7 --- 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 17:03:30,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:03:30,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:03:30,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:03:30,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:03:30,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:03:30,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:03:30,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:03:30,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:03:30,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:03:30,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:03:30,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:03:30,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:03:30,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:03:30,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:03:30,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:03:30,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:03:30,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:03:30,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:03:30,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:03:30,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:03:30,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:03:30,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:03:30,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:03:31,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:03:31,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:03:31,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:03:31,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:03:31,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:03:31,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:03:31,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:03:31,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:03:31,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:03:31,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:03:31,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:03:31,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:03:31,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:03:31,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:03:31,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:03:31,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:03:31,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:03:31,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 17:03:31,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:03:31,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:03:31,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:03:31,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:03:31,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:03:31,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:03:31,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:03:31,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:03:31,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:03:31,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:03:31,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:03:31,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:03:31,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:03:31,077 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 17:03:31,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:03:31,078 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:03:31,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:03:31,078 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:03:31,078 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:03:31,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:03:31,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:03:31,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:03:31,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:03:31,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:03:31,080 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:03:31,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:03:31,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:03:31,081 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_da698636-086a-4954-bfc0-0b89e7ffbf27/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab66f9f89348f915f5a709aa03ac6e16c276dad15b53c460d26f0885e78d4ce7 [2022-10-17 17:03:31,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:03:31,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:03:31,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:03:31,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:03:31,507 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:03:31,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2022-10-17 17:03:31,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/data/5ec501513/1b79f0b1b74648abb7364b020f93d365/FLAG19b05e183 [2022-10-17 17:03:32,105 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:03:32,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2022-10-17 17:03:32,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/data/5ec501513/1b79f0b1b74648abb7364b020f93d365/FLAG19b05e183 [2022-10-17 17:03:32,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/data/5ec501513/1b79f0b1b74648abb7364b020f93d365 [2022-10-17 17:03:32,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:03:32,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:03:32,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:03:32,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:03:32,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:03:32,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2415f263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32, skipping insertion in model container [2022-10-17 17:03:32,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:03:32,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:03:32,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:03:32,719 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:03:32,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:03:32,749 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:03:32,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32 WrapperNode [2022-10-17 17:03:32,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:03:32,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:03:32,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:03:32,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:03:32,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,788 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-10-17 17:03:32,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:03:32,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:03:32,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:03:32,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:03:32,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:03:32,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:03:32,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:03:32,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:03:32,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:32" (1/1) ... [2022-10-17 17:03:32,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:03:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:03:32,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:03:32,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:03:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:03:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:03:32,972 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:03:32,975 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:03:33,134 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:03:33,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:03:33,160 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:03:33,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:33 BoogieIcfgContainer [2022-10-17 17:03:33,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:03:33,165 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:03:33,165 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:03:33,176 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:03:33,176 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:33" (1/1) ... [2022-10-17 17:03:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:03:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2022-10-17 17:03:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-17 17:03:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:03:33,254 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:33,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:33,482 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 17:03:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-10-17 17:03:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-10-17 17:03:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:03:33,567 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:33,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:33,707 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 17:03:33,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:33,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2022-10-17 17:03:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2022-10-17 17:03:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:03:33,992 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:33,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:34,069 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 17:03:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-10-17 17:03:34,290 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-10-17 17:03:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:03:34,290 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:34,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:34,394 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 17:03:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2022-10-17 17:03:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2022-10-17 17:03:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:03:34,614 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:34,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:34,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:03:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:34,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:03:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:34,746 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2022-10-17 17:03:34,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:03:34 ImpRootNode [2022-10-17 17:03:34,776 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:03:34,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:03:34,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:03:34,777 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:03:34,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:33" (3/4) ... [2022-10-17 17:03:34,780 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:03:34,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:03:34,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:03:34,843 INFO L158 Benchmark]: Toolchain (without parser) took 2363.82ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 65.1MB in the end (delta: 47.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2022-10-17 17:03:34,844 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 151.0MB. Free memory was 128.7MB in the beginning and 128.5MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:03:34,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.32ms. Allocated memory is still 151.0MB. Free memory was 112.1MB in the beginning and 127.3MB in the end (delta: -15.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:03:34,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.40ms. Allocated memory is still 151.0MB. Free memory was 127.3MB in the beginning and 125.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:03:34,846 INFO L158 Benchmark]: Boogie Preprocessor took 24.89ms. Allocated memory is still 151.0MB. Free memory was 125.9MB in the beginning and 125.2MB in the end (delta: 702.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:03:34,847 INFO L158 Benchmark]: RCFGBuilder took 348.14ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 114.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:03:34,847 INFO L158 Benchmark]: CodeCheck took 1611.10ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 66.5MB in the end (delta: 47.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-10-17 17:03:34,848 INFO L158 Benchmark]: Witness Printer took 61.05ms. Allocated memory is still 151.0MB. Free memory was 66.5MB in the beginning and 65.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:03:34,851 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 22 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 VAL [old_x=2147483647, old_y=1, x=-1, y=1] [L22] old_x + 1 VAL [old_x=2147483647, old_y=1, x=-1, y=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 151.0MB. Free memory was 128.7MB in the beginning and 128.5MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.32ms. Allocated memory is still 151.0MB. Free memory was 112.1MB in the beginning and 127.3MB in the end (delta: -15.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.40ms. Allocated memory is still 151.0MB. Free memory was 127.3MB in the beginning and 125.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.89ms. Allocated memory is still 151.0MB. Free memory was 125.9MB in the beginning and 125.2MB in the end (delta: 702.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.14ms. Allocated memory is still 151.0MB. Free memory was 125.2MB in the beginning and 114.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1611.10ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 66.5MB in the end (delta: 47.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 61.05ms. Allocated memory is still 151.0MB. Free memory was 66.5MB in the beginning and 65.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:03:34,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da698636-086a-4954-bfc0-0b89e7ffbf27/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)