./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark29_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/benchmark29_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 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:11:41,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:11:41,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:11:41,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:11:41,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:11:41,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:11:41,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:11:41,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:11:41,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:11:41,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:11:41,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:11:41,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:11:41,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:11:41,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:11:41,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:11:41,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:11:41,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:11:41,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:11:41,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:11:41,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:11:41,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:11:41,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:11:41,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:11:41,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:11:41,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:11:41,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:11:41,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:11:41,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:11:41,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:11:41,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:11:41,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:11:41,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:11:41,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:11:41,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:11:41,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:11:41,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:11:41,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:11:41,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:11:41,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:11:41,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:11:41,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:11:41,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-02-21 03:11:41,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:11:41,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:11:41,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:11:41,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:11:41,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-21 03:11:41,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-21 03:11:41,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:11:41,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:11:41,306 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:11:41,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:11:41,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:11:41,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:11:41,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:11:41,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:11:41,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:11:41,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-21 03:11:41,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-21 03:11:41,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-21 03:11:41,309 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-02-21 03:11:41,309 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:11:41,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:11:41,310 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:11:41,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-21 03:11:41,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:11:41,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:11:41,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-21 03:11:41,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:11:41,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:11:41,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-21 03:11:41,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-21 03:11:41,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:11:41,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-21 03:11:41,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-21 03:11:41,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 [2022-02-21 03:11:41,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:11:41,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:11:41,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:11:41,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:11:41,609 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:11:41,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2022-02-21 03:11:41,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4097c0b/0952caa5a7374216a323644cbc382cd2/FLAG529333943 [2022-02-21 03:11:42,120 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:11:42,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2022-02-21 03:11:42,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4097c0b/0952caa5a7374216a323644cbc382cd2/FLAG529333943 [2022-02-21 03:11:42,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4097c0b/0952caa5a7374216a323644cbc382cd2 [2022-02-21 03:11:42,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:11:42,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:11:42,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:11:42,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:11:42,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:11:42,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f2363b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42, skipping insertion in model container [2022-02-21 03:11:42,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:11:42,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:11:42,675 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/benchmark29_linear.i[868,881] [2022-02-21 03:11:42,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:11:42,692 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:11:42,700 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/benchmark29_linear.i[868,881] [2022-02-21 03:11:42,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:11:42,710 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:11:42,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42 WrapperNode [2022-02-21 03:11:42,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:11:42,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:11:42,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:11:42,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:11:42,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,742 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2022-02-21 03:11:42,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:11:42,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:11:42,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:11:42,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:11:42,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:11:42,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:11:42,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:11:42,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:11:42,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (1/1) ... [2022-02-21 03:11:42,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-21 03:11:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:11:42,801 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 03:11:42,803 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 03:11:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:11:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:11:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:11:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:11:42,862 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:11:42,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:11:43,050 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:11:43,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:11:43,067 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:11:43,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:11:43 BoogieIcfgContainer [2022-02-21 03:11:43,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:11:43,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-21 03:11:43,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-21 03:11:43,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-21 03:11:43,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:11:42" (1/3) ... [2022-02-21 03:11:43,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a6cd5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:11:43, skipping insertion in model container [2022-02-21 03:11:43,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:11:42" (2/3) ... [2022-02-21 03:11:43,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a6cd5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:11:43, skipping insertion in model container [2022-02-21 03:11:43,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:11:43" (3/3) ... [2022-02-21 03:11:43,075 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark29_linear.i [2022-02-21 03:11:43,079 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-21 03:11:43,095 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-02-21 03:11:43,141 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-21 03:11:43,148 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 03:11:43,150 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-21 03:11:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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 03:11:43,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-02-21 03:11:43,173 INFO L506 BasicCegarLoop]: Found error trace [2022-02-21 03:11:43,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-02-21 03:11:43,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-02-21 03:11:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:11:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-02-21 03:11:43,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:11:43,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926369775] [2022-02-21 03:11:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:11:43,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:11:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:11:43,277 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:11:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:11:43,313 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:11:43,315 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-21 03:11:43,316 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-02-21 03:11:43,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-02-21 03:11:43,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-02-21 03:11:43,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-02-21 03:11:43,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-21 03:11:43,325 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-21 03:11:43,328 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-02-21 03:11:43,350 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-02-21 03:11:43,351 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-02-21 03:11:43,351 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-21 03:11:43,351 WARN L170 areAnnotationChecker]: L23-3 has no Hoare annotation [2022-02-21 03:11:43,352 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-02-21 03:11:43,358 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-02-21 03:11:43,358 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-21 03:11:43,358 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-21 03:11:43,358 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2022-02-21 03:11:43,358 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2022-02-21 03:11:43,358 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-21 03:11:43,359 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-21 03:11:43,359 WARN L170 areAnnotationChecker]: L26-4 has no Hoare annotation [2022-02-21 03:11:43,359 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-21 03:11:43,359 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-21 03:11:43,359 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-21 03:11:43,362 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-02-21 03:11:43,362 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-02-21 03:11:43,362 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 03:11:43,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:11:43 BoogieIcfgContainer [2022-02-21 03:11:43,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-21 03:11:43,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:11:43,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:11:43,364 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:11:43,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:11:43" (3/4) ... [2022-02-21 03:11:43,366 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-21 03:11:43,400 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 03:11:43,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:11:43,402 INFO L158 Benchmark]: Toolchain (without parser) took 878.77ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.4MB in the beginning and 78.0MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:11:43,402 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:11:43,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.90ms. Allocated memory is still 83.9MB. Free memory was 49.2MB in the beginning and 61.4MB in the end (delta: -12.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-02-21 03:11:43,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.50ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 59.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:11:43,408 INFO L158 Benchmark]: Boogie Preprocessor took 12.02ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 58.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:11:43,408 INFO L158 Benchmark]: RCFGBuilder took 313.92ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 48.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:11:43,408 INFO L158 Benchmark]: TraceAbstraction took 293.04ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 47.6MB in the beginning and 79.7MB in the end (delta: -32.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 03:11:43,409 INFO L158 Benchmark]: Witness Printer took 36.59ms. Allocated memory is still 100.7MB. Free memory was 79.7MB in the beginning and 78.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:11:43,413 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 0.19ms. Allocated memory is still 83.9MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.90ms. Allocated memory is still 83.9MB. Free memory was 49.2MB in the beginning and 61.4MB in the end (delta: -12.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.50ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 59.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.02ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 58.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.92ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 48.1MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 293.04ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 47.6MB in the beginning and 79.7MB in the end (delta: -32.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 36.59ms. Allocated memory is still 100.7MB. Free memory was 79.7MB in the beginning and 78.0MB in the end (delta: 1.7MB). 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x