./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e1ff0e6 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-industry-pattern/mod3.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ddd4991c5cc906892e1dead1f9e74e1cbe4e48f2d3e17b392b8efb86f500387 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-14 23:15:13,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 23:15:13,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 23:15:13,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 23:15:13,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 23:15:13,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 23:15:13,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 23:15:13,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 23:15:13,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 23:15:13,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 23:15:13,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 23:15:13,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 23:15:13,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 23:15:13,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 23:15:13,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 23:15:13,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 23:15:13,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 23:15:13,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 23:15:13,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 23:15:13,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 23:15:13,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 23:15:13,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 23:15:13,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 23:15:13,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 23:15:13,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 23:15:13,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 23:15:13,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 23:15:13,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 23:15:13,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 23:15:13,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 23:15:13,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 23:15:13,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 23:15:13,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 23:15:13,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 23:15:13,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 23:15:13,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 23:15:13,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 23:15:13,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 23:15:13,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 23:15:13,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 23:15:13,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 23:15:13,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 23:15:13,745 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 23:15:13,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 23:15:13,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 23:15:13,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 23:15:13,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 23:15:13,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 23:15:13,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 23:15:13,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 23:15:13,749 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 23:15:13,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 23:15:13,749 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 23:15:13,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 23:15:13,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 23:15:13,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 23:15:13,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 23:15:13,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 23:15:13,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 23:15:13,751 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 23:15:13,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 23:15:13,751 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 23:15:13,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 23:15:13,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 23:15:13,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 23:15:13,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 23:15:13,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 23:15:13,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 23:15:13,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 23:15:13,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 23:15:13,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 23:15:13,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 23:15:13,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 23:15:13,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 23:15:13,754 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 23:15:13,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 23:15:13,755 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 23:15:13,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ddd4991c5cc906892e1dead1f9e74e1cbe4e48f2d3e17b392b8efb86f500387 [2023-02-14 23:15:13,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 23:15:13,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 23:15:13,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 23:15:13,982 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 23:15:13,982 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 23:15:13,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2023-02-14 23:15:15,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 23:15:15,271 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 23:15:15,271 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2023-02-14 23:15:15,278 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee510ec7/8087f7c2e45a41409c2c926a3288f82e/FLAG1b8eea806 [2023-02-14 23:15:15,290 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee510ec7/8087f7c2e45a41409c2c926a3288f82e [2023-02-14 23:15:15,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 23:15:15,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 23:15:15,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 23:15:15,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 23:15:15,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 23:15:15,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dccaf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15, skipping insertion in model container [2023-02-14 23:15:15,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 23:15:15,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 23:15:15,444 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2023-02-14 23:15:15,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 23:15:15,460 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 23:15:15,476 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2023-02-14 23:15:15,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 23:15:15,489 INFO L208 MainTranslator]: Completed translation [2023-02-14 23:15:15,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15 WrapperNode [2023-02-14 23:15:15,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 23:15:15,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 23:15:15,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 23:15:15,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 23:15:15,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,515 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2023-02-14 23:15:15,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 23:15:15,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 23:15:15,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 23:15:15,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 23:15:15,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 23:15:15,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 23:15:15,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 23:15:15,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 23:15:15,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (1/1) ... [2023-02-14 23:15:15,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 23:15:15,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:15:15,570 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 23:15:15,589 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 23:15:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 23:15:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 23:15:15,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 23:15:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 23:15:15,657 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 23:15:15,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 23:15:15,809 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 23:15:15,814 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 23:15:15,814 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-14 23:15:15,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:15:15 BoogieIcfgContainer [2023-02-14 23:15:15,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 23:15:15,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 23:15:15,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 23:15:15,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 23:15:15,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 11:15:15" (1/3) ... [2023-02-14 23:15:15,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2de0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:15:15, skipping insertion in model container [2023-02-14 23:15:15,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:15:15" (2/3) ... [2023-02-14 23:15:15,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2de0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:15:15, skipping insertion in model container [2023-02-14 23:15:15,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:15:15" (3/3) ... [2023-02-14 23:15:15,823 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2023-02-14 23:15:15,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 23:15:15,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 23:15:15,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 23:15:15,900 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;@608b90c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 23:15:15,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 23:15:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 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 23:15:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-14 23:15:15,910 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:15:15,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:15:15,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:15:15,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:15:15,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1053789450, now seen corresponding path program 1 times [2023-02-14 23:15:15,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:15:15,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370843731] [2023-02-14 23:15:15,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:15:15,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:15:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:15:16,448 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 23:15:16,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:15:16,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370843731] [2023-02-14 23:15:16,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370843731] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:15:16,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:15:16,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 23:15:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909274477] [2023-02-14 23:15:16,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:15:16,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 23:15:16,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:15:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 23:15:16,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 23:15:16,504 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 23:15:18,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-14 23:15:19,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-14 23:15:21,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-14 23:15:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:15:21,777 INFO L93 Difference]: Finished difference Result 60 states and 81 transitions. [2023-02-14 23:15:21,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 23:15:21,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2023-02-14 23:15:21,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:15:21,793 INFO L225 Difference]: With dead ends: 60 [2023-02-14 23:15:21,794 INFO L226 Difference]: Without dead ends: 25 [2023-02-14 23:15:21,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 23:15:21,799 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-02-14 23:15:21,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2023-02-14 23:15:21,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-14 23:15:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-02-14 23:15:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 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 23:15:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2023-02-14 23:15:21,835 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 11 [2023-02-14 23:15:21,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:15:21,836 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-02-14 23:15:21,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 23:15:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-02-14 23:15:21,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-14 23:15:21,837 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:15:21,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:15:21,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 23:15:21,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:15:21,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:15:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1942403648, now seen corresponding path program 1 times [2023-02-14 23:15:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:15:21,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977779934] [2023-02-14 23:15:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:15:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:15:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:15:22,323 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 23:15:22,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:15:22,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977779934] [2023-02-14 23:15:22,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977779934] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:15:22,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:15:22,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 23:15:22,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272459859] [2023-02-14 23:15:22,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:15:22,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 23:15:22,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:15:22,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 23:15:22,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 23:15:22,327 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 23:15:24,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-14 23:15:24,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:15:24,810 INFO L93 Difference]: Finished difference Result 63 states and 84 transitions. [2023-02-14 23:15:24,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-14 23:15:24,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2023-02-14 23:15:24,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:15:24,814 INFO L225 Difference]: With dead ends: 63 [2023-02-14 23:15:24,814 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 23:15:24,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-02-14 23:15:24,816 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-02-14 23:15:24,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 43 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-02-14 23:15:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 23:15:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 23:15:24,817 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) [2023-02-14 23:15:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 23:15:24,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-14 23:15:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:15:24,818 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 23:15:24,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 23:15:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 23:15:24,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 23:15:24,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-14 23:15:24,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 23:15:24,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-14 23:15:24,859 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 106) no Hoare annotation was computed. [2023-02-14 23:15:24,860 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 150) no Hoare annotation was computed. [2023-02-14 23:15:24,866 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 85) no Hoare annotation was computed. [2023-02-14 23:15:24,866 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 151) the Hoare annotation is: true [2023-02-14 23:15:24,866 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-14 23:15:24,867 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-14 23:15:24,868 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 112) no Hoare annotation was computed. [2023-02-14 23:15:24,870 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2023-02-14 23:15:24,870 INFO L895 garLoopResultBuilder]: At program point L53(lines 25 145) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__x~0#1| (let ((.cse0 (div (+ (* (div |ULTIMATE.start_main_~main__x~0#1| 4294967296) (- 4294967296)) |ULTIMATE.start_main_~main__x~0#1|) 3))) (+ (* 3 .cse0) (* (div (+ (* (- 3) .cse0) |ULTIMATE.start_main_~main__x~0#1|) 4294967296) 4294967296)))) [2023-02-14 23:15:24,871 INFO L902 garLoopResultBuilder]: At program point L20(lines 17 151) the Hoare annotation is: true [2023-02-14 23:15:24,871 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 113) no Hoare annotation was computed. [2023-02-14 23:15:24,872 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-02-14 23:15:24,872 INFO L895 garLoopResultBuilder]: At program point L33(lines 26 114) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__x~0#1| (let ((.cse0 (div (+ (* (div |ULTIMATE.start_main_~main__x~0#1| 4294967296) (- 4294967296)) |ULTIMATE.start_main_~main__x~0#1|) 3))) (+ (* 3 .cse0) (* (div (+ (* (- 3) .cse0) |ULTIMATE.start_main_~main__x~0#1|) 4294967296) 4294967296)))) [2023-02-14 23:15:24,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-14 23:15:24,872 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 143) no Hoare annotation was computed. [2023-02-14 23:15:24,873 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 84) no Hoare annotation was computed. [2023-02-14 23:15:24,873 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 145) no Hoare annotation was computed. [2023-02-14 23:15:24,873 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-14 23:15:24,873 INFO L895 garLoopResultBuilder]: At program point L30(lines 26 114) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__x~0#1| (let ((.cse0 (div (+ (* (div |ULTIMATE.start_main_~main__x~0#1| 4294967296) (- 4294967296)) |ULTIMATE.start_main_~main__x~0#1|) 3))) (+ (* 3 .cse0) (* (div (+ (* (- 3) .cse0) |ULTIMATE.start_main_~main__x~0#1|) 4294967296) 4294967296)))) [2023-02-14 23:15:24,873 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 144) no Hoare annotation was computed. [2023-02-14 23:15:24,874 INFO L902 garLoopResultBuilder]: At program point L80(lines 25 145) the Hoare annotation is: true [2023-02-14 23:15:24,874 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 86) no Hoare annotation was computed. [2023-02-14 23:15:24,874 INFO L902 garLoopResultBuilder]: At program point L68(lines 25 145) the Hoare annotation is: true [2023-02-14 23:15:24,877 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-14 23:15:24,878 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 23:15:24,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 11:15:24 BoogieIcfgContainer [2023-02-14 23:15:24,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 23:15:24,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 23:15:24,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 23:15:24,892 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 23:15:24,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:15:15" (3/4) ... [2023-02-14 23:15:24,895 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 23:15:24,902 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-14 23:15:24,902 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-14 23:15:24,902 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 23:15:24,903 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-14 23:15:24,935 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 23:15:24,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 23:15:24,936 INFO L158 Benchmark]: Toolchain (without parser) took 9642.59ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 43.2MB in the end (delta: 53.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,936 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:15:24,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.55ms. Allocated memory is still 127.9MB. Free memory was 95.7MB in the beginning and 84.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.30ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 82.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,937 INFO L158 Benchmark]: Boogie Preprocessor took 15.04ms. Allocated memory is still 127.9MB. Free memory was 82.9MB in the beginning and 82.0MB in the end (delta: 925.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,937 INFO L158 Benchmark]: RCFGBuilder took 284.36ms. Allocated memory is still 127.9MB. Free memory was 81.6MB in the beginning and 69.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,937 INFO L158 Benchmark]: TraceAbstraction took 9072.88ms. Allocated memory is still 127.9MB. Free memory was 69.0MB in the beginning and 46.5MB in the end (delta: 22.5MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,938 INFO L158 Benchmark]: Witness Printer took 43.72ms. Allocated memory is still 127.9MB. Free memory was 46.5MB in the beginning and 43.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 23:15:24,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.55ms. Allocated memory is still 127.9MB. Free memory was 95.7MB in the beginning and 84.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.30ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 82.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.04ms. Allocated memory is still 127.9MB. Free memory was 82.9MB in the beginning and 82.0MB in the end (delta: 925.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.36ms. Allocated memory is still 127.9MB. Free memory was 81.6MB in the beginning and 69.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9072.88ms. Allocated memory is still 127.9MB. Free memory was 69.0MB in the beginning and 46.5MB in the end (delta: 22.5MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Witness Printer took 43.72ms. Allocated memory is still 127.9MB. Free memory was 46.5MB in the beginning and 43.2MB in the end (delta: 3.3MB). 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: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 42 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 20 NumberOfFragments, 97 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 160 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 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 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + (-3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 4294967296 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + (-3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 4294967296 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x <= 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + (-3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 4294967296 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-14 23:15:24,955 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