./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark28_linear.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark28_linear.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash b6ae2199bb6fa83eaf4308cd5efdb4548717730ae3e0982f71a81ddeaf867424 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:11:34,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:11:34,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:11:35,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:11:35,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:11:35,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:11:35,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:11:35,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:11:35,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:11:35,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:11:35,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:11:35,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:11:35,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:11:35,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:11:35,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:11:35,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:11:35,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:11:35,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:11:35,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:11:35,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:11:35,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:11:35,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:11:35,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:11:35,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:11:35,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:11:35,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:11:35,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:11:35,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:11:35,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:11:35,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:11:35,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:11:35,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:11:35,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:11:35,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:11:35,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:11:35,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:11:35,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:11:35,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:11:35,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:11:35,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:11:35,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:11:35,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-02-21 03:11:35,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:11:35,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:11:35,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:11:35,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:11:35,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-21 03:11:35,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-21 03:11:35,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:11:35,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:11:35,096 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:11:35,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:11:35,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-21 03:11:35,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:11:35,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-21 03:11:35,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-21 03:11:35,099 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6ae2199bb6fa83eaf4308cd5efdb4548717730ae3e0982f71a81ddeaf867424 [2022-02-21 03:11:35,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:11:35,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:11:35,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:11:35,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:11:35,314 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:11:35,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark28_linear.i [2022-02-21 03:11:35,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aecd74819/a8d24355e41e4343b66a6b8136fe7d0f/FLAG7bed645a3 [2022-02-21 03:11:35,767 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:11:35,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark28_linear.i [2022-02-21 03:11:35,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aecd74819/a8d24355e41e4343b66a6b8136fe7d0f/FLAG7bed645a3 [2022-02-21 03:11:35,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aecd74819/a8d24355e41e4343b66a6b8136fe7d0f [2022-02-21 03:11:35,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:11:35,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:11:35,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:11:35,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:11:35,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:11:35,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:35,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2a1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35, skipping insertion in model container [2022-02-21 03:11:35,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:35,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:11:35,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:11:35,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark28_linear.i[868,881] [2022-02-21 03:11:35,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:11:35,952 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:11:35,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark28_linear.i[868,881] [2022-02-21 03:11:35,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:11:35,986 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:11:35,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35 WrapperNode [2022-02-21 03:11:35,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:11:35,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:11:35,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:11:35,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:11:35,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:35,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,020 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-02-21 03:11:36,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:11:36,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:11:36,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:11:36,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:11:36,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:11:36,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:11:36,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:11:36,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:11:36,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (1/1) ... [2022-02-21 03:11:36,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:11:36,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:11:36,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-21 03:11:36,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-21 03:11:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:11:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:11:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:11:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:11:36,172 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:11:36,173 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:11:36,747 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:11:36,758 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:11:36,759 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:11:36,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:11:36 BoogieIcfgContainer [2022-02-21 03:11:36,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:11:36,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-21 03:11:36,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-21 03:11:36,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-21 03:11:36,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:11:35" (1/3) ... [2022-02-21 03:11:36,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1391c92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:11:36, skipping insertion in model container [2022-02-21 03:11:36,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:35" (2/3) ... [2022-02-21 03:11:36,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1391c92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:11:36, skipping insertion in model container [2022-02-21 03:11:36,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:11:36" (3/3) ... [2022-02-21 03:11:36,775 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark28_linear.i [2022-02-21 03:11:36,783 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-21 03:11:36,783 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-02-21 03:11:36,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-21 03:11:36,885 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 [2022-02-21 03:11:36,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-02-21 03:11:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 34 states have internal predecessors, (39), 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) [2022-02-21 03:11:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-02-21 03:11:36,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:11:36,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-02-21 03:11:36,914 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-02-21 03:11:36,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:11:36,925 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-02-21 03:11:36,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:11:36,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634617710] [2022-02-21 03:11:36,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:11:36,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:11:37,061 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-21 03:11:37,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765412533] [2022-02-21 03:11:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:11:37,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-21 03:11:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:11:37,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-21 03:11:37,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-21 03:11:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:11:37,134 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:11:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:11:37,168 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:11:37,171 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-21 03:11:37,171 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-02-21 03:11:37,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-02-21 03:11:37,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-02-21 03:11:37,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-02-21 03:11:37,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-02-21 03:11:37,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-02-21 03:11:37,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-02-21 03:11:37,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-02-21 03:11:37,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-02-21 03:11:37,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-02-21 03:11:37,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-02-21 03:11:37,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-02-21 03:11:37,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-21 03:11:37,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-21 03:11:37,396 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-21 03:11:37,398 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-21 03:11:37,418 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2022-02-21 03:11:37,419 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L22-4 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L22-4 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L25-4 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L25-4 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: L25-4 has no Hoare annotation [2022-02-21 03:11:37,420 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2022-02-21 03:11:37,421 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-21 03:11:37,422 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-21 03:11:37,423 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-21 03:11:37,423 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-21 03:11:37,423 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-21 03:11:37,423 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-21 03:11:37,423 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-02-21 03:11:37,423 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-02-21 03:11:37,423 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-21 03:11:37,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:11:37 BoogieIcfgContainer [2022-02-21 03:11:37,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-21 03:11:37,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:11:37,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:11:37,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:11:37,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:11:36" (3/4) ... [2022-02-21 03:11:37,427 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-21 03:11:37,446 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 03:11:37,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:11:37,448 INFO L158 Benchmark]: Toolchain (without parser) took 1658.58ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 66.0MB in the beginning and 68.1MB in the end (delta: -2.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-02-21 03:11:37,448 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 62.8MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:11:37,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.73ms. Allocated memory is still 86.0MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:11:37,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.18ms. Allocated memory is still 86.0MB. Free memory was 62.4MB in the beginning and 60.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:11:37,450 INFO L158 Benchmark]: Boogie Preprocessor took 31.76ms. Allocated memory is still 86.0MB. Free memory was 60.8MB in the beginning and 59.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:11:37,450 INFO L158 Benchmark]: RCFGBuilder took 706.57ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 47.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 03:11:37,450 INFO L158 Benchmark]: TraceAbstraction took 656.23ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.7MB in the beginning and 69.7MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:11:37,451 INFO L158 Benchmark]: Witness Printer took 21.98ms. Allocated memory is still 104.9MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:11:37,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 62.8MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.73ms. Allocated memory is still 86.0MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.18ms. Allocated memory is still 86.0MB. Free memory was 62.4MB in the beginning and 60.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.76ms. Allocated memory is still 86.0MB. Free memory was 60.8MB in the beginning and 59.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.57ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 47.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 656.23ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.7MB in the beginning and 69.7MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 21.98ms. Allocated memory is still 104.9MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] i * i VAL [i=-46661643, j=2147483647] - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: 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, 35 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=35occurred 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! [2022-02-21 03:11:37,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)