./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark33_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/benchmark33_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 0401d70d4c8ea9c434a0d70dc3e862e9d9144b8f78274b8265998d58d02bfd69 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:51:34,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:51:34,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:51:34,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:51:34,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:51:34,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:51:34,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:51:34,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:51:34,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:51:34,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:51:34,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:51:34,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:51:34,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:51:34,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:51:34,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:51:34,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:51:34,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:51:34,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:51:34,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:51:34,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:51:34,283 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:51:34,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:51:34,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:51:34,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:51:34,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:51:34,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:51:34,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:51:34,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:51:34,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:51:34,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:51:34,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:51:34,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:51:34,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:51:34,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:51:34,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:51:34,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:51:34,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:51:34,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:51:34,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:51:34,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:51:34,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:51:34,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:51:34,307 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:51:34,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:51:34,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:51:34,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:51:34,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:51:34,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:51:34,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:51:34,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:51:34,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:51:34,330 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:51:34,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:51:34,331 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:51:34,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:51:34,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:51:34,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:51:34,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:51:34,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:51:34,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:51:34,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:51:34,343 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:51:34,343 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:51:34,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:51:34,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:51:34,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:51:34,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:51:34,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:51:34,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:51:34,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:51:34,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:51:34,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:51:34,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:51:34,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:51:34,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:51:34,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:51:34,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0401d70d4c8ea9c434a0d70dc3e862e9d9144b8f78274b8265998d58d02bfd69 [2022-07-22 00:51:34,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:51:34,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:51:34,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:51:34,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:51:34,690 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:51:34,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark33_linear.i [2022-07-22 00:51:34,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/839b74608/cbfa05ceb3954685ae14f199e22f1c54/FLAGbd03123a0 [2022-07-22 00:51:35,187 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:51:35,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark33_linear.i [2022-07-22 00:51:35,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/839b74608/cbfa05ceb3954685ae14f199e22f1c54/FLAGbd03123a0 [2022-07-22 00:51:35,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/839b74608/cbfa05ceb3954685ae14f199e22f1c54 [2022-07-22 00:51:35,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:51:35,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:51:35,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:51:35,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:51:35,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:51:35,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d3041a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35, skipping insertion in model container [2022-07-22 00:51:35,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:51:35,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:51:35,385 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/benchmark33_linear.i[868,881] [2022-07-22 00:51:35,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:51:35,403 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:51:35,446 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/benchmark33_linear.i[868,881] [2022-07-22 00:51:35,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:51:35,458 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:51:35,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35 WrapperNode [2022-07-22 00:51:35,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:51:35,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:51:35,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:51:35,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:51:35,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,486 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-07-22 00:51:35,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:51:35,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:51:35,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:51:35,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:51:35,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:51:35,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:51:35,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:51:35,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:51:35,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (1/1) ... [2022-07-22 00:51:35,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:51:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:51:35,549 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) [2022-07-22 00:51:35,583 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 [2022-07-22 00:51:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:51:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:51:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:51:35,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:51:35,656 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:51:35,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:51:35,777 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:51:35,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:51:35,782 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 00:51:35,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:51:35 BoogieIcfgContainer [2022-07-22 00:51:35,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:51:35,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:51:35,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:51:35,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:51:35,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:51:35" (1/3) ... [2022-07-22 00:51:35,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aff6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:51:35, skipping insertion in model container [2022-07-22 00:51:35,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:51:35" (2/3) ... [2022-07-22 00:51:35,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aff6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:51:35, skipping insertion in model container [2022-07-22 00:51:35,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:51:35" (3/3) ... [2022-07-22 00:51:35,800 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark33_linear.i [2022-07-22 00:51:35,814 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:51:35,815 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 00:51:35,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:51:35,888 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@35b653c9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@bba20b6 [2022-07-22 00:51:35,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 00:51:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-07-22 00:51:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-22 00:51:35,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:51:35,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-22 00:51:35,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:51:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:51:35,906 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-07-22 00:51:35,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:51:35,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207126139] [2022-07-22 00:51:35,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:51:35,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:51:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:51:36,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:51:36,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:51:36,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207126139] [2022-07-22 00:51:36,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207126139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:51:36,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:51:36,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:51:36,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619315440] [2022-07-22 00:51:36,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:51:36,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:51:36,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:51:36,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:51:36,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:51:36,106 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-07-22 00:51:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:51:36,155 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-07-22 00:51:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:51:36,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-07-22 00:51:36,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:51:36,164 INFO L225 Difference]: With dead ends: 20 [2022-07-22 00:51:36,164 INFO L226 Difference]: Without dead ends: 7 [2022-07-22 00:51:36,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:51:36,169 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:51:36,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:51:36,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-07-22 00:51:36,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-07-22 00:51:36,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-07-22 00:51:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-07-22 00:51:36,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-07-22 00:51:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:51:36,217 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-07-22 00:51:36,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-07-22 00:51:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-07-22 00:51:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:51:36,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:51:36,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:51:36,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:51:36,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:51:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:51:36,219 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-07-22 00:51:36,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:51:36,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556650876] [2022-07-22 00:51:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:51:36,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:51:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:51:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:51:36,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:51:36,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556650876] [2022-07-22 00:51:36,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556650876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:51:36,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:51:36,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:51:36,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772758587] [2022-07-22 00:51:36,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:51:36,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:51:36,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:51:36,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:51:36,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:51:36,291 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-22 00:51:36,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:51:36,315 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-07-22 00:51:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:51:36,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-07-22 00:51:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:51:36,317 INFO L225 Difference]: With dead ends: 7 [2022-07-22 00:51:36,317 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 00:51:36,317 INFO L412 NwaCegarLoop]: 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 [2022-07-22 00:51:36,318 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:51:36,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:51:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 00:51:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 00:51:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-22 00:51:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 00:51:36,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-07-22 00:51:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:51:36,324 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 00:51:36,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-22 00:51:36,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 00:51:36,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 00:51:36,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-07-22 00:51:36,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-07-22 00:51:36,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:51:36,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 00:51:36,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-07-22 00:51:36,344 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 00:51:36,345 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-07-22 00:51:36,345 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-07-22 00:51:36,345 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-07-22 00:51:36,345 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-07-22 00:51:36,345 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 00:51:36,350 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-07-22 00:51:36,351 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 00:51:36,351 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 00:51:36,351 INFO L902 garLoopResultBuilder]: At program point L26(lines 19 27) the Hoare annotation is: true [2022-07-22 00:51:36,353 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 24) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~x~0#1|) [2022-07-22 00:51:36,353 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 24) no Hoare annotation was computed. [2022-07-22 00:51:36,353 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2022-07-22 00:51:36,356 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 00:51:36,358 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:51:36,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:51:36 BoogieIcfgContainer [2022-07-22 00:51:36,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:51:36,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:51:36,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:51:36,384 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:51:36,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:51:35" (3/4) ... [2022-07-22 00:51:36,388 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 00:51:36,398 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-22 00:51:36,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-22 00:51:36,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 00:51:36,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 00:51:36,430 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 00:51:36,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:51:36,431 INFO L158 Benchmark]: Toolchain (without parser) took 1203.23ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 36.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-07-22 00:51:36,431 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.1MB in the end (delta: 34.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:51:36,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.80ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 44.4MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 00:51:36,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.64ms. Allocated memory is still 60.8MB. Free memory was 44.2MB in the beginning and 42.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:51:36,433 INFO L158 Benchmark]: Boogie Preprocessor took 20.99ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.0MB in the end (delta: 870.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:51:36,435 INFO L158 Benchmark]: RCFGBuilder took 276.57ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 33.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 00:51:36,436 INFO L158 Benchmark]: TraceAbstraction took 595.24ms. Allocated memory is still 60.8MB. Free memory was 32.8MB in the beginning and 39.0MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:51:36,437 INFO L158 Benchmark]: Witness Printer took 46.36ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 36.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:51:36,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.1MB in the end (delta: 34.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.80ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 44.4MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.64ms. Allocated memory is still 60.8MB. Free memory was 44.2MB in the beginning and 42.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.99ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.0MB in the end (delta: 870.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.57ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 33.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 595.24ms. Allocated memory is still 60.8MB. Free memory was 32.8MB in the beginning and 39.0MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.36ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 36.6MB in the end (delta: 2.4MB). 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 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 14 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x RESULT: Ultimate proved your program to be correct! [2022-07-22 00:51:36,486 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 Result: TRUE