./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY --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 32bit --witnessprinter.graph.data.programhash c8679dad194af8e09f8dc0270d50ea9ce875abb3 ...................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:34:14,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:34:14,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:34:14,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:34:14,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:34:14,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:34:14,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:34:14,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:34:14,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:34:14,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:34:14,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:34:14,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:34:14,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:34:14,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:34:14,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:34:14,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:34:14,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:34:14,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:34:14,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:34:14,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:34:14,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:34:14,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:34:14,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:34:14,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:34:14,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:34:14,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:34:14,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:34:14,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:34:14,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:34:14,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:34:14,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:34:14,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:34:14,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:34:14,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:34:14,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:34:14,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:34:14,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:34:14,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:34:14,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:34:14,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:34:14,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:34:14,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-10-13 03:34:14,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:34:14,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:34:14,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:34:14,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:34:14,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:34:14,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:34:14,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:34:14,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:34:14,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 03:34:14,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:34:14,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:34:14,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:34:14,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:34:14,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:34:14,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:34:14,861 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 03:34:14,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:34:14,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:34:14,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:34:14,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:34:14,863 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:34:14,863 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:34:14,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:34:14,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:34:14,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:34:14,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:34:14,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:34:14,865 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:34:14,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:34:14,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:34:14,865 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_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8679dad194af8e09f8dc0270d50ea9ce875abb3 [2021-10-13 03:34:15,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:34:15,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:34:15,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:34:15,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:34:15,178 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:34:15,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/bitvector/modulus-2.i [2021-10-13 03:34:15,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/data/33c1b1f8a/f822b12f4b6040318462fb4dce5f5b87/FLAG7df9632b8 [2021-10-13 03:34:15,675 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:34:15,675 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/sv-benchmarks/c/bitvector/modulus-2.i [2021-10-13 03:34:15,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/data/33c1b1f8a/f822b12f4b6040318462fb4dce5f5b87/FLAG7df9632b8 [2021-10-13 03:34:16,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/data/33c1b1f8a/f822b12f4b6040318462fb4dce5f5b87 [2021-10-13 03:34:16,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:34:16,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:34:16,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:34:16,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:34:16,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:34:16,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b05a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16, skipping insertion in model container [2021-10-13 03:34:16,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:34:16,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:34:16,228 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2021-10-13 03:34:16,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:34:16,251 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:34:16,264 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2021-10-13 03:34:16,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:34:16,284 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:34:16,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16 WrapperNode [2021-10-13 03:34:16,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:34:16,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:34:16,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:34:16,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:34:16,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:34:16,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:34:16,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:34:16,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:34:16,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:34:16,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:34:16,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:34:16,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:34:16,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:34:16,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:34:16,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:34:16,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:34:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 03:34:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:34:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:34:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:34:16,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:34:16,871 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 03:34:16,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:34:16 BoogieIcfgContainer [2021-10-13 03:34:16,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:34:16,875 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:34:16,875 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:34:16,886 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:34:16,886 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:34:16" (1/1) ... [2021-10-13 03:34:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:34:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:34:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-10-13 03:34:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-13 03:34:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 03:34:16,935 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:34:16,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:34:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:34:17,029 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:34:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:34:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:34:17,115 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:34:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:34:17,134 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-13 03:34:17,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:34:17 ImpRootNode [2021-10-13 03:34:17,153 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:34:17,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:34:17,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:34:17,154 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:34:17,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:34:16" (3/4) ... [2021-10-13 03:34:17,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 03:34:17,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:34:17,160 INFO L168 Benchmark]: Toolchain (without parser) took 1118.73 ms. Allocated memory is still 94.4 MB. Free memory was 53.4 MB in the beginning and 38.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-13 03:34:17,161 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:34:17,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.74 ms. Allocated memory is still 94.4 MB. Free memory was 53.2 MB in the beginning and 64.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:34:17,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.44 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 63.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:34:17,164 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 61.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:34:17,165 INFO L168 Benchmark]: RCFGBuilder took 526.29 ms. Allocated memory is still 94.4 MB. Free memory was 61.7 MB in the beginning and 49.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 03:34:17,166 INFO L168 Benchmark]: CodeCheck took 278.28 ms. Allocated memory is still 94.4 MB. Free memory was 49.1 MB in the beginning and 38.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 03:34:17,166 INFO L168 Benchmark]: Witness Printer took 4.40 ms. Allocated memory is still 94.4 MB. Free memory was 38.8 MB in the beginning and 38.4 MB in the end (delta: 459.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:34:17,171 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 228.4ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 8.4ms SsaConstructionTime, 16.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 43. Possible FailurePath: [L38] unsigned int n = __VERIFIER_nondet_uint(); [L39] unsigned int s = __VERIFIER_nondet_uint(); [L40] unsigned int d; [L41] unsigned int m; [L3] COND FALSE !(!cond) [L43] 1 << s * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.74 ms. Allocated memory is still 94.4 MB. Free memory was 53.2 MB in the beginning and 64.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.44 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 63.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.45 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 61.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 526.29 ms. Allocated memory is still 94.4 MB. Free memory was 61.7 MB in the beginning and 49.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 278.28 ms. Allocated memory is still 94.4 MB. Free memory was 49.1 MB in the beginning and 38.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.40 ms. Allocated memory is still 94.4 MB. Free memory was 38.8 MB in the beginning and 38.4 MB in the end (delta: 459.3 kB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 03:34:17,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81698b6e-f666-42d5-8852-a79d5d5d500c/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...