./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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/benchmark44_disjunctive.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 bee045beef00a84520361ceade974b7fbb908b65f12806fb137f6143300856d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 02:43:22,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 02:43:22,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 02:43:22,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 02:43:22,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 02:43:22,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 02:43:22,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 02:43:22,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 02:43:22,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 02:43:22,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 02:43:22,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 02:43:22,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 02:43:22,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 02:43:22,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 02:43:22,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 02:43:22,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 02:43:22,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 02:43:22,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 02:43:22,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 02:43:22,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 02:43:22,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 02:43:22,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 02:43:22,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 02:43:22,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 02:43:22,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 02:43:22,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 02:43:22,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 02:43:22,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 02:43:22,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 02:43:22,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 02:43:22,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 02:43:22,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 02:43:22,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 02:43:22,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 02:43:22,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 02:43:22,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 02:43:22,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 02:43:22,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 02:43:22,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 02:43:22,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 02:43:22,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 02:43:22,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-14 02:43:22,600 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 02:43:22,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 02:43:22,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 02:43:22,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 02:43:22,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 02:43:22,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 02:43:22,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 02:43:22,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 02:43:22,604 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 02:43:22,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 02:43:22,605 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 02:43:22,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 02:43:22,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 02:43:22,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 02:43:22,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 02:43:22,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 02:43:22,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 02:43:22,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 02:43:22,606 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 02:43:22,606 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 02:43:22,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 02:43:22,607 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 02:43:22,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 02:43:22,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 02:43:22,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 02:43:22,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 02:43:22,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 02:43:22,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 02:43:22,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 02:43:22,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 02:43:22,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 02:43:22,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 02:43:22,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 02:43:22,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 02:43:22,609 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 02:43:22,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 02:43:22,610 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 02:43:22,610 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee045beef00a84520361ceade974b7fbb908b65f12806fb137f6143300856d1 [2023-02-14 02:43:22,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 02:43:22,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 02:43:22,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 02:43:22,855 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 02:43:22,855 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 02:43:22,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i [2023-02-14 02:43:23,990 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 02:43:24,150 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 02:43:24,151 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark44_disjunctive.i [2023-02-14 02:43:24,155 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd586b7f/143abe5710d444778b8931399c1d9192/FLAG0334118dc [2023-02-14 02:43:24,166 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd586b7f/143abe5710d444778b8931399c1d9192 [2023-02-14 02:43:24,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 02:43:24,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 02:43:24,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 02:43:24,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 02:43:24,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 02:43:24,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643b8ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24, skipping insertion in model container [2023-02-14 02:43:24,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 02:43:24,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 02:43:24,303 WARN L237 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/benchmark44_disjunctive.i[873,886] [2023-02-14 02:43:24,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 02:43:24,324 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 02:43:24,335 WARN L237 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/benchmark44_disjunctive.i[873,886] [2023-02-14 02:43:24,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 02:43:24,348 INFO L208 MainTranslator]: Completed translation [2023-02-14 02:43:24,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24 WrapperNode [2023-02-14 02:43:24,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 02:43:24,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 02:43:24,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 02:43:24,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 02:43:24,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,380 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2023-02-14 02:43:24,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 02:43:24,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 02:43:24,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 02:43:24,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 02:43:24,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 02:43:24,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 02:43:24,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 02:43:24,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 02:43:24,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (1/1) ... [2023-02-14 02:43:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 02:43:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 02:43:24,450 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) [2023-02-14 02:43:24,457 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 [2023-02-14 02:43:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 02:43:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 02:43:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 02:43:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 02:43:24,544 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 02:43:24,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 02:43:24,765 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 02:43:24,770 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 02:43:24,771 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 02:43:24,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:43:24 BoogieIcfgContainer [2023-02-14 02:43:24,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 02:43:24,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 02:43:24,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 02:43:24,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 02:43:24,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:43:24" (1/3) ... [2023-02-14 02:43:24,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1497cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:43:24, skipping insertion in model container [2023-02-14 02:43:24,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:43:24" (2/3) ... [2023-02-14 02:43:24,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1497cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:43:24, skipping insertion in model container [2023-02-14 02:43:24,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:43:24" (3/3) ... [2023-02-14 02:43:24,779 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark44_disjunctive.i [2023-02-14 02:43:24,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 02:43:24,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-02-14 02:43:24,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 02:43:24,868 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42437158, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 02:43:24,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-02-14 02:43:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 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) [2023-02-14 02:43:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 02:43:24,879 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:43:24,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 02:43:24,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-14 02:43:24,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:43:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash 889575245, now seen corresponding path program 1 times [2023-02-14 02:43:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:43:24,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650927804] [2023-02-14 02:43:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:43:24,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:43:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:43:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:25,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:43:25,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650927804] [2023-02-14 02:43:25,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650927804] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:43:25,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:43:25,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:43:25,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366439750] [2023-02-14 02:43:25,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:43:25,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:43:25,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:43:25,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:43:25,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:43:25,111 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 41 states have internal predecessors, (48), 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 3.0) internal successors, (6), 3 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) [2023-02-14 02:43:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:43:25,178 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-02-14 02:43:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:43:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2023-02-14 02:43:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:43:25,215 INFO L225 Difference]: With dead ends: 54 [2023-02-14 02:43:25,215 INFO L226 Difference]: Without dead ends: 33 [2023-02-14 02:43:25,219 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 [2023-02-14 02:43:25,225 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 35 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:43:25,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 25 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:43:25,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-14 02:43:25,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-14 02:43:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 32 states have internal predecessors, (35), 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) [2023-02-14 02:43:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-02-14 02:43:25,264 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 6 [2023-02-14 02:43:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:43:25,265 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-02-14 02:43:25,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2023-02-14 02:43:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-02-14 02:43:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-14 02:43:25,267 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:43:25,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:43:25,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 02:43:25,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-14 02:43:25,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:43:25,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1807028872, now seen corresponding path program 1 times [2023-02-14 02:43:25,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:43:25,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560216808] [2023-02-14 02:43:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:43:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:43:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:43:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:25,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:43:25,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560216808] [2023-02-14 02:43:25,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560216808] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:43:25,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:43:25,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 02:43:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383887719] [2023-02-14 02:43:25,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:43:25,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:43:25,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:43:25,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:43:25,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:43:25,351 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-02-14 02:43:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:43:25,390 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-02-14 02:43:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:43:25,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) Word has length 7 [2023-02-14 02:43:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:43:25,393 INFO L225 Difference]: With dead ends: 33 [2023-02-14 02:43:25,393 INFO L226 Difference]: Without dead ends: 31 [2023-02-14 02:43:25,394 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 [2023-02-14 02:43:25,397 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 02:43:25,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 02:43:25,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-14 02:43:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-14 02:43:25,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.5) internal successors, (33), 30 states have internal predecessors, (33), 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) [2023-02-14 02:43:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-02-14 02:43:25,405 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 7 [2023-02-14 02:43:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:43:25,406 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-02-14 02:43:25,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-02-14 02:43:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-02-14 02:43:25,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-14 02:43:25,411 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:43:25,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:43:25,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 02:43:25,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-14 02:43:25,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:43:25,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1807006063, now seen corresponding path program 1 times [2023-02-14 02:43:25,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:43:25,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782958812] [2023-02-14 02:43:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:43:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:43:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 02:43:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 02:43:25,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 02:43:25,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782958812] [2023-02-14 02:43:25,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782958812] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 02:43:25,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 02:43:25,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 02:43:25,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538623676] [2023-02-14 02:43:25,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 02:43:25,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 02:43:25,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 02:43:25,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 02:43:25,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:43:25,457 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 02:43:25,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 02:43:25,547 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2023-02-14 02:43:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 02:43:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Word has length 7 [2023-02-14 02:43:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 02:43:25,549 INFO L225 Difference]: With dead ends: 42 [2023-02-14 02:43:25,550 INFO L226 Difference]: Without dead ends: 36 [2023-02-14 02:43:25,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 02:43:25,554 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 02:43:25,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 02:43:25,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-14 02:43:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2023-02-14 02:43:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 31 states have internal predecessors, (34), 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) [2023-02-14 02:43:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-02-14 02:43:25,568 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 7 [2023-02-14 02:43:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 02:43:25,568 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-02-14 02:43:25,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-14 02:43:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-02-14 02:43:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 02:43:25,569 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 02:43:25,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 02:43:25,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 02:43:25,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-14 02:43:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 02:43:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash 183320239, now seen corresponding path program 1 times [2023-02-14 02:43:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 02:43:25,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616624434] [2023-02-14 02:43:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 02:43:25,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 02:43:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 02:43:25,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 02:43:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 02:43:25,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 02:43:25,612 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-14 02:43:25,613 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-02-14 02:43:25,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-02-14 02:43:25,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-02-14 02:43:25,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-02-14 02:43:25,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-02-14 02:43:25,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-02-14 02:43:25,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-02-14 02:43:25,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-02-14 02:43:25,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-02-14 02:43:25,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-02-14 02:43:25,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-02-14 02:43:25,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-02-14 02:43:25,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-02-14 02:43:25,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-02-14 02:43:25,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 02:43:25,622 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-14 02:43:25,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 02:43:25,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 02:43:25 BoogieIcfgContainer [2023-02-14 02:43:25,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 02:43:25,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 02:43:25,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 02:43:25,643 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 02:43:25,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:43:24" (3/4) ... [2023-02-14 02:43:25,645 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-14 02:43:25,673 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 02:43:25,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 02:43:25,674 INFO L158 Benchmark]: Toolchain (without parser) took 1504.32ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 104.8MB in the beginning and 143.6MB in the end (delta: -38.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-14 02:43:25,674 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 02:43:25,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.54ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 94.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 02:43:25,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.73ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 91.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 02:43:25,675 INFO L158 Benchmark]: Boogie Preprocessor took 35.93ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.8MB in the end (delta: 973.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 02:43:25,675 INFO L158 Benchmark]: RCFGBuilder took 354.87ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 79.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 02:43:25,676 INFO L158 Benchmark]: TraceAbstraction took 868.27ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 78.7MB in the beginning and 144.6MB in the end (delta: -65.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 02:43:25,676 INFO L158 Benchmark]: Witness Printer took 30.43ms. Allocated memory is still 190.8MB. Free memory was 144.6MB in the beginning and 143.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 02:43:25,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.54ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 94.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.73ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 91.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.93ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 90.8MB in the end (delta: 973.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 354.87ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 79.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 868.27ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 78.7MB in the beginning and 144.6MB in the end (delta: -65.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.43ms. Allocated memory is still 190.8MB. Free memory was 144.6MB in the beginning and 143.6MB in the end (delta: 1.1MB). 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: 25]: 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