./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eca696f473a749bd7bb8ef4ffbc9c57484da89b7c22756c4a78744a89ac76b38 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:21:13,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:21:13,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:21:14,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:21:14,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:21:14,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:21:14,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:21:14,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:21:14,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:21:14,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:21:14,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:21:14,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:21:14,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:21:14,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:21:14,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:21:14,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:21:14,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:21:14,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:21:14,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:21:14,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:21:14,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:21:14,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:21:14,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:21:14,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:21:14,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:21:14,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:21:14,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:21:14,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:21:14,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:21:14,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:21:14,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:21:14,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:21:14,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:21:14,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:21:14,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:21:14,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:21:14,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:21:14,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:21:14,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:21:14,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:21:14,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:21:14,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-20 07:21:14,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:21:14,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:21:14,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:21:14,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:21:14,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:21:14,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:21:14,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:21:14,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:21:14,148 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:21:14,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:21:14,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:21:14,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:21:14,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:21:14,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:21:14,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:21:14,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:21:14,151 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 07:21:14,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:21:14,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:21:14,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:21:14,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:21:14,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:21:14,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:21:14,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:21:14,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:21:14,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:21:14,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:21:14,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:21:14,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:21:14,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:21:14,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:21:14,156 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_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eca696f473a749bd7bb8ef4ffbc9c57484da89b7c22756c4a78744a89ac76b38 [2021-11-20 07:21:14,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:21:14,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:21:14,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:21:14,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:21:14,518 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:21:14,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i [2021-11-20 07:21:14,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/data/204e73a90/74c2591423e442d1ab9f7c091c82b6d0/FLAG9e186e0a6 [2021-11-20 07:21:15,125 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:21:15,129 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/sv-benchmarks/c/signedintegeroverflow-regression/PostfixIncrement.i [2021-11-20 07:21:15,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/data/204e73a90/74c2591423e442d1ab9f7c091c82b6d0/FLAG9e186e0a6 [2021-11-20 07:21:15,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/data/204e73a90/74c2591423e442d1ab9f7c091c82b6d0 [2021-11-20 07:21:15,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:21:15,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:21:15,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:21:15,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:21:15,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:21:15,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2924cb6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15, skipping insertion in model container [2021-11-20 07:21:15,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:21:15,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:21:15,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:21:15,813 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:21:15,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:21:15,920 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:21:15,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15 WrapperNode [2021-11-20 07:21:15,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:21:15,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:21:15,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:21:15,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:21:15,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,977 INFO L137 Inliner]: procedures = 109, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-20 07:21:15,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:21:15,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:21:15,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:21:15,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:21:15,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:15,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:16,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:16,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:16,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:16,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:21:16,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:21:16,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:21:16,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:21:16,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (1/1) ... [2021-11-20 07:21:16,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:21:16,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:21:16,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:21:16,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:21:16,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:21:16,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:21:16,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:21:16,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:21:16,236 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:21:16,238 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:21:16,351 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:21:16,357 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:21:16,357 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:21:16,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:21:16 BoogieIcfgContainer [2021-11-20 07:21:16,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:21:16,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:21:16,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:21:16,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:21:16,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:21:15" (1/3) ... [2021-11-20 07:21:16,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b4d4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:21:16, skipping insertion in model container [2021-11-20 07:21:16,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:15" (2/3) ... [2021-11-20 07:21:16,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b4d4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:21:16, skipping insertion in model container [2021-11-20 07:21:16,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:21:16" (3/3) ... [2021-11-20 07:21:16,392 INFO L111 eAbstractionObserver]: Analyzing ICFG PostfixIncrement.i [2021-11-20 07:21:16,398 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:21:16,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 07:21:16,491 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:21:16,504 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:21:16,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 07:21:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:21:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:21:16,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:21:16,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:21:16,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-20 07:21:16,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:21:16,531 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-11-20 07:21:16,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:21:16,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011570306] [2021-11-20 07:21:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:21:16,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:21:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:21:16,637 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:21:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:21:16,664 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:21:16,666 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:21:16,668 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2021-11-20 07:21:16,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2021-11-20 07:21:16,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:21:16,676 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 07:21:16,680 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:21:16,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:21:16 BoogieIcfgContainer [2021-11-20 07:21:16,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:21:16,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:21:16,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:21:16,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:21:16,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:21:16" (3/4) ... [2021-11-20 07:21:16,709 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 07:21:16,747 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:21:16,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:21:16,755 INFO L158 Benchmark]: Toolchain (without parser) took 1296.71ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 48.8MB in the beginning and 68.0MB in the end (delta: -19.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-20 07:21:16,756 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:21:16,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.96ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 48.5MB in the beginning and 93.6MB in the end (delta: -45.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-20 07:21:16,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.61ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 92.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:21:16,761 INFO L158 Benchmark]: Boogie Preprocessor took 37.51ms. Allocated memory is still 121.6MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 995.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:21:16,764 INFO L158 Benchmark]: RCFGBuilder took 341.87ms. Allocated memory is still 121.6MB. Free memory was 91.1MB in the beginning and 82.1MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:21:16,765 INFO L158 Benchmark]: TraceAbstraction took 339.05ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 69.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 07:21:16,766 INFO L158 Benchmark]: Witness Printer took 42.39ms. Allocated memory is still 121.6MB. Free memory was 69.0MB in the beginning and 68.0MB in the end (delta: 986.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:21:16,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.96ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 48.5MB in the beginning and 93.6MB in the end (delta: -45.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.61ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 92.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.51ms. Allocated memory is still 121.6MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 995.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.87ms. Allocated memory is still 121.6MB. Free memory was 91.1MB in the beginning and 82.1MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 339.05ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 69.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 42.39ms. Allocated memory is still 121.6MB. Free memory was 69.0MB in the beginning and 68.0MB in the end (delta: 986.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int x = 2147483647; [L333] x++ VAL [x=2147483647, x++=2147483647] - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:21:16,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_163d8f3b-a862-4653-99fb-95ab23c8b2e6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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)