./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc949f01d3072f8d5a3b015a375618b4a9741f7ee0cd702369b7f784be11a819 --- 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-38b53e6 [2022-11-25 22:24:07,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:24:07,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:24:08,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:24:08,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:24:08,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:24:08,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:24:08,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:24:08,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:24:08,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:24:08,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:24:08,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:24:08,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:24:08,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:24:08,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:24:08,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:24:08,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:24:08,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:24:08,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:24:08,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:24:08,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:24:08,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:24:08,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:24:08,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:24:08,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:24:08,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:24:08,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:24:08,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:24:08,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:24:08,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:24:08,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:24:08,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:24:08,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:24:08,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:24:08,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:24:08,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:24:08,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:24:08,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:24:08,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:24:08,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:24:08,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:24:08,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 22:24:08,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:24:08,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:24:08,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:24:08,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:24:08,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:24:08,107 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:24:08,129 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:24:08,129 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:24:08,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:24:08,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:24:08,130 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:24:08,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:24:08,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:24:08,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:24:08,132 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:24:08,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:24:08,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:24:08,132 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:24:08,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:24:08,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:24:08,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:24:08,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:24:08,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:24:08,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:24:08,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:24:08,135 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:24:08,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:24:08,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:24:08,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:24:08,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:24:08,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:24:08,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:24:08,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:24:08,138 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:24:08,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:24:08,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:24:08,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:24:08,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:24:08,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:24:08,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:24:08,140 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_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc949f01d3072f8d5a3b015a375618b4a9741f7ee0cd702369b7f784be11a819 [2022-11-25 22:24:08,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:24:08,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:24:08,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:24:08,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:24:08,482 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:24:08,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i [2022-11-25 22:24:11,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:24:12,114 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:24:12,115 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i [2022-11-25 22:24:12,128 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/data/71c3003e6/e23a8847a2794633aaaa4e42519ab8aa/FLAG4526e98cb [2022-11-25 22:24:12,155 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/data/71c3003e6/e23a8847a2794633aaaa4e42519ab8aa [2022-11-25 22:24:12,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:24:12,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:24:12,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:24:12,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:24:12,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:24:12,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18408a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12, skipping insertion in model container [2022-11-25 22:24:12,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:24:12,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:24:12,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:24:12,515 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:24:12,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:24:12,577 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:24:12,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12 WrapperNode [2022-11-25 22:24:12,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:24:12,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:24:12,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:24:12,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:24:12,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,638 INFO L138 Inliner]: procedures = 104, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-11-25 22:24:12,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:24:12,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:24:12,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:24:12,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:24:12,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:24:12,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:24:12,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:24:12,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:24:12,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (1/1) ... [2022-11-25 22:24:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:24:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:12,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:24:12,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:24:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:24:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:24:12,888 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:24:12,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:24:12,992 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:24:13,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:24:13,024 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:24:13,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:13 BoogieIcfgContainer [2022-11-25 22:24:13,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:24:13,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:24:13,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:24:13,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:24:13,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:24:12" (1/3) ... [2022-11-25 22:24:13,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6438a3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:24:13, skipping insertion in model container [2022-11-25 22:24:13,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:12" (2/3) ... [2022-11-25 22:24:13,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6438a3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:24:13, skipping insertion in model container [2022-11-25 22:24:13,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:13" (3/3) ... [2022-11-25 22:24:13,048 INFO L112 eAbstractionObserver]: Analyzing ICFG PrefixIncrement.i [2022-11-25 22:24:13,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:24:13,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:24:13,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:24:13,151 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41ad294, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:24:13,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:24:13,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 5 states have internal predecessors, (5), 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) [2022-11-25 22:24:13,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-25 22:24:13,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:13,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-25 22:24:13,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:24:13,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:13,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1305, now seen corresponding path program 1 times [2022-11-25 22:24:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:13,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731192793] [2022-11-25 22:24:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:13,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:13,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731192793] [2022-11-25 22:24:13,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731192793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:13,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:13,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:24:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181676743] [2022-11-25 22:24:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:13,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:13,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:13,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:13,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:13,435 INFO L87 Difference]: Start difference. First operand has 6 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 5 states have internal predecessors, (5), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-25 22:24:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:13,480 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2022-11-25 22:24:13,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-11-25 22:24:13,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:13,492 INFO L225 Difference]: With dead ends: 6 [2022-11-25 22:24:13,492 INFO L226 Difference]: Without dead ends: 4 [2022-11-25 22:24:13,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:13,515 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:13,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:24:13,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2022-11-25 22:24:13,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2022-11-25 22:24:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-25 22:24:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2022-11-25 22:24:13,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2022-11-25 22:24:13,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:13,591 INFO L495 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2022-11-25 22:24:13,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-25 22:24:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2022-11-25 22:24:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 22:24:13,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:13,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 22:24:13,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:24:13,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:24:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash 40491, now seen corresponding path program 1 times [2022-11-25 22:24:13,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:13,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144518562] [2022-11-25 22:24:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:24:13,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:24:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:24:13,643 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:24:13,644 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:24:13,646 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:24:13,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:24:13,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:24:13,652 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:24:13,657 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:24:13,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:24:13 BoogieIcfgContainer [2022-11-25 22:24:13,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:24:13,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:24:13,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:24:13,675 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:24:13,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:13" (3/4) ... [2022-11-25 22:24:13,679 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:24:13,723 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:24:13,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:24:13,724 INFO L158 Benchmark]: Toolchain (without parser) took 1560.27ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 67.1MB in the end (delta: 49.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-25 22:24:13,724 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory was 125.1MB in the beginning and 124.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:24:13,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.47ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 102.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:24:13,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.72ms. Allocated memory is still 155.2MB. Free memory was 102.9MB in the beginning and 101.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:24:13,726 INFO L158 Benchmark]: Boogie Preprocessor took 36.26ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 100.2MB in the end (delta: 995.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:24:13,727 INFO L158 Benchmark]: RCFGBuilder took 350.32ms. Allocated memory is still 155.2MB. Free memory was 100.2MB in the beginning and 91.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 22:24:13,728 INFO L158 Benchmark]: TraceAbstraction took 642.33ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 68.2MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 22:24:13,728 INFO L158 Benchmark]: Witness Printer took 49.11ms. Allocated memory is still 155.2MB. Free memory was 68.2MB in the beginning and 67.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:24:13,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory was 125.1MB in the beginning and 124.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.47ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 102.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.72ms. Allocated memory is still 155.2MB. Free memory was 102.9MB in the beginning and 101.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.26ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 100.2MB in the end (delta: 995.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.32ms. Allocated memory is still 155.2MB. Free memory was 100.2MB in the beginning and 91.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 642.33ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 68.2MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 49.11ms. Allocated memory is still 155.2MB. Free memory was 68.2MB in the beginning and 67.1MB in the end (delta: 1.1MB). 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; VAL [x=2147483647] [L333] ++x VAL [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, 6 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-11-25 22:24:13,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28f0ee1-16e4-431a-9906-b8bf8cb937fe/bin/utaipan-ByfvJB40ur/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)