./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark07_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/benchmark07_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 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:10:51,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:10:51,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:10:51,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:10:51,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:10:51,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:10:51,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:10:51,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:10:51,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:10:51,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:10:51,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:10:51,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:10:51,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:10:51,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:10:51,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:10:51,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:10:51,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:10:51,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:10:51,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:10:51,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:10:51,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:10:51,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:10:51,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:10:51,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:10:51,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:10:51,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:10:51,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:10:51,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:10:51,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:10:51,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:10:51,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:10:51,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:10:51,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:10:51,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:10:51,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:10:51,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:10:51,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:10:51,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:10:51,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:10:51,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:10:51,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:10:51,405 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-02-21 03:10:51,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:10:51,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:10:51,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:10:51,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:10:51,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-21 03:10:51,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-21 03:10:51,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:10:51,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:10:51,440 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:10:51,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:10:51,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:10:51,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:10:51,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:10:51,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:10:51,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:10:51,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-21 03:10:51,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-21 03:10:51,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-21 03:10:51,443 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-02-21 03:10:51,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:10:51,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:10:51,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:10:51,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-21 03:10:51,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:10:51,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:10:51,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-21 03:10:51,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:10:51,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:10:51,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-21 03:10:51,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-21 03:10:51,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:10:51,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-21 03:10:51,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-21 03:10:51,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a73419fb64daa6d7ad78ec2e7248d3c39562a5784dfcea53eb2425fcf193a59 [2022-02-21 03:10:51,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:10:51,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:10:51,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:10:51,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:10:51,710 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:10:51,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2022-02-21 03:10:51,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe789ae4/1a370847b45e49148da1114454837b81/FLAG981edb4d3 [2022-02-21 03:10:52,170 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:10:52,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark07_linear.i [2022-02-21 03:10:52,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe789ae4/1a370847b45e49148da1114454837b81/FLAG981edb4d3 [2022-02-21 03:10:52,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe789ae4/1a370847b45e49148da1114454837b81 [2022-02-21 03:10:52,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:10:52,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:10:52,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:10:52,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:10:52,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:10:52,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415b0369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52, skipping insertion in model container [2022-02-21 03:10:52,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:10:52,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:10:52,707 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/benchmark07_linear.i[868,881] [2022-02-21 03:10:52,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:10:52,726 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:10:52,737 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/benchmark07_linear.i[868,881] [2022-02-21 03:10:52,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:10:52,752 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:10:52,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52 WrapperNode [2022-02-21 03:10:52,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:10:52,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:10:52,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:10:52,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:10:52,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,788 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-02-21 03:10:52,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:10:52,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:10:52,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:10:52,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:10:52,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:10:52,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:10:52,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:10:52,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:10:52,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (1/1) ... [2022-02-21 03:10:52,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:10:52,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:10:52,839 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 03:10:52,845 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 03:10:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:10:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:10:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:10:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:10:52,909 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:10:52,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:10:53,111 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:10:53,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:10:53,117 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:10:53,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:10:53 BoogieIcfgContainer [2022-02-21 03:10:53,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:10:53,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-21 03:10:53,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-21 03:10:53,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-21 03:10:53,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:10:52" (1/3) ... [2022-02-21 03:10:53,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6286aeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:10:53, skipping insertion in model container [2022-02-21 03:10:53,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:10:52" (2/3) ... [2022-02-21 03:10:53,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6286aeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:10:53, skipping insertion in model container [2022-02-21 03:10:53,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:10:53" (3/3) ... [2022-02-21 03:10:53,133 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark07_linear.i [2022-02-21 03:10:53,137 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-21 03:10:53,137 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-02-21 03:10:53,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-21 03:10:53,207 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 03:10:53,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-02-21 03:10:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.6875) internal successors, (27), 22 states have internal predecessors, (27), 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 03:10:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-02-21 03:10:53,234 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:10:53,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-02-21 03:10:53,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-02-21 03:10:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:10:53,241 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-02-21 03:10:53,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:10:53,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324680810] [2022-02-21 03:10:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:10:53,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:10:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:10:53,416 INFO L290 TraceCheckUtils]: 0: Hoare triple {26#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(21, 2); {26#true} is VALID [2022-02-21 03:10:53,417 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_~i~0#1, main_~n~0#1, main_~k~0#1, main_~flag~0#1;assume -2147483648 <= main_#t~nondet1#1 && main_#t~nondet1#1 <= 2147483647;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;assume -2147483648 <= main_#t~nondet2#1 && main_#t~nondet2#1 <= 2147483647;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;assume -2147483648 <= main_#t~nondet3#1 && main_#t~nondet3#1 <= 2147483647;main_~k~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~flag~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~i~0#1 := 0; {28#(= |ULTIMATE.start_main_~i~0#1| 0)} is VALID [2022-02-21 03:10:53,417 INFO L290 TraceCheckUtils]: 2: Hoare triple {28#(= |ULTIMATE.start_main_~i~0#1| 0)} assume !!(main_~n~0#1 > 0 && main_~n~0#1 < 10); {28#(= |ULTIMATE.start_main_~i~0#1| 0)} is VALID [2022-02-21 03:10:53,418 INFO L290 TraceCheckUtils]: 3: Hoare triple {28#(= |ULTIMATE.start_main_~i~0#1| 0)} assume !!(main_~i~0#1 < main_~n~0#1);main_#t~post5#1 := main_~i~0#1; {29#(= |ULTIMATE.start_main_#t~post5#1| 0)} is VALID [2022-02-21 03:10:53,419 INFO L290 TraceCheckUtils]: 4: Hoare triple {29#(= |ULTIMATE.start_main_#t~post5#1| 0)} assume !(1 + main_#t~post5#1 <= 2147483647); {27#false} is VALID [2022-02-21 03:10:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:10:53,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:10:53,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324680810] [2022-02-21 03:10:53,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324680810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:10:53,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:10:53,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:10:53,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24752629] [2022-02-21 03:10:53,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:10:53,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) Word has length 5 [2022-02-21 03:10:53,430 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-21 03:10:53,433 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-02-21 03:10:53,445 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:10:53,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-21 03:10:53,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:10:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 03:10:53,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 03:10:53,468 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.6875) internal successors, (27), 22 states have internal predecessors, (27), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-02-21 03:10:53,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:10:53,584 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2022-02-21 03:10:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 03:10:53,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) Word has length 5 [2022-02-21 03:10:53,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-21 03:10:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-02-21 03:10:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-02-21 03:10:53,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-02-21 03:10:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-02-21 03:10:53,594 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 46 transitions. [2022-02-21 03:10:53,646 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:10:53,651 INFO L225 Difference]: With dead ends: 40 [2022-02-21 03:10:53,652 INFO L226 Difference]: Without dead ends: 20 [2022-02-21 03:10:53,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-21 03:10:53,657 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-21 03:10:53,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-21 03:10:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-02-21 03:10:53,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-02-21 03:10:53,698 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:10:53,699 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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 03:10:53,699 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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 03:10:53,700 INFO L87 Difference]: Start difference. First operand 20 states. Second operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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 03:10:53,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:10:53,702 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-02-21 03:10:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-02-21 03:10:53,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:10:53,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:10:53,707 INFO L74 IsIncluded]: Start isIncluded. First operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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 20 states. [2022-02-21 03:10:53,708 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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 20 states. [2022-02-21 03:10:53,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:10:53,710 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-02-21 03:10:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-02-21 03:10:53,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:10:53,717 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:10:53,717 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:10:53,717 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:10:53,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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 03:10:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-02-21 03:10:53,720 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2022-02-21 03:10:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-21 03:10:53,721 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-02-21 03:10:53,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-02-21 03:10:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-02-21 03:10:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-02-21 03:10:53,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:10:53,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 03:10:53,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-21 03:10:53,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-02-21 03:10:53,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:10:53,726 INFO L85 PathProgramCache]: Analyzing trace with hash 183289487, now seen corresponding path program 1 times [2022-02-21 03:10:53,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:10:53,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562882333] [2022-02-21 03:10:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:10:53,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:10:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:10:53,748 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:10:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:10:53,774 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:10:53,778 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-21 03:10:53,780 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-02-21 03:10:53,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-02-21 03:10:53,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-02-21 03:10:53,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-02-21 03:10:53,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-02-21 03:10:53,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-02-21 03:10:53,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-21 03:10:53,789 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-21 03:10:53,797 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-21 03:10:53,818 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-21 03:10:53,828 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-21 03:10:53,828 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-21 03:10:53,828 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-21 03:10:53,828 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L28-4 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L28-4 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L28-4 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-21 03:10:53,829 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-02-21 03:10:53,830 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-02-21 03:10:53,831 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-02-21 03:10:53,831 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2022-02-21 03:10:53,831 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2022-02-21 03:10:53,831 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2022-02-21 03:10:53,832 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2022-02-21 03:10:53,832 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2022-02-21 03:10:53,833 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 03:10:53,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:10:53 BoogieIcfgContainer [2022-02-21 03:10:53,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-21 03:10:53,836 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:10:53,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:10:53,836 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:10:53,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:10:53" (3/4) ... [2022-02-21 03:10:53,839 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-21 03:10:53,885 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 03:10:53,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:10:53,886 INFO L158 Benchmark]: Toolchain (without parser) took 1307.71ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 57.6MB in the end (delta: 2.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-02-21 03:10:53,887 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:10:53,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.64ms. Allocated memory is still 81.8MB. Free memory was 59.6MB in the beginning and 49.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:10:53,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.78ms. Allocated memory is still 81.8MB. Free memory was 49.6MB in the beginning and 48.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:10:53,887 INFO L158 Benchmark]: Boogie Preprocessor took 18.30ms. Allocated memory is still 81.8MB. Free memory was 48.1MB in the beginning and 47.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:10:53,887 INFO L158 Benchmark]: RCFGBuilder took 314.00ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 35.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 03:10:53,888 INFO L158 Benchmark]: TraceAbstraction took 708.29ms. Allocated memory is still 81.8MB. Free memory was 35.1MB in the beginning and 59.7MB in the end (delta: -24.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-02-21 03:10:53,888 INFO L158 Benchmark]: Witness Printer took 49.66ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 57.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:10:53,889 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 67.1MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.64ms. Allocated memory is still 81.8MB. Free memory was 59.6MB in the beginning and 49.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.78ms. Allocated memory is still 81.8MB. Free memory was 49.6MB in the beginning and 48.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.30ms. Allocated memory is still 81.8MB. Free memory was 48.1MB in the beginning and 47.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.00ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 35.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 708.29ms. Allocated memory is still 81.8MB. Free memory was 35.1MB in the beginning and 59.7MB in the end (delta: -24.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 49.66ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 57.6MB in the end (delta: 2.1MB). 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int n = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] _Bool flag = __VERIFIER_nondet_bool(); [L24] i=0 VAL [i=0, k=2147479648, n=1] [L25] COND FALSE !(!(n>0 && n<10)) VAL [i=0, k=2147479648, n=1] [L26] COND TRUE i