./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/AutomizerTermination.xml -i ../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-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(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:06:02,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:06:02,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:06:03,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:06:03,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:06:03,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:06:03,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:06:03,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:06:03,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:06:03,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:06:03,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:06:03,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:06:03,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:06:03,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:06:03,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:06:03,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:06:03,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:06:03,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:06:03,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:06:03,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:06:03,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:06:03,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:06:03,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:06:03,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:06:03,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:06:03,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:06:03,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:06:03,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:06:03,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:06:03,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:06:03,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:06:03,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:06:03,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:06:03,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:06:03,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:06:03,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:06:03,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:06:03,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:06:03,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:06:03,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:06:03,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:06:03,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:06:03,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:06:03,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:06:03,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:06:03,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:06:03,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:06:03,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:06:03,083 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:06:03,083 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:06:03,083 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:06:03,083 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:06:03,084 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:06:03,084 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:06:03,084 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:06:03,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:06:03,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:06:03,084 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:06:03,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:06:03,086 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:06:03,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:06:03,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:06:03,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:06:03,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:06:03,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:06:03,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:06:03,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:06:03,088 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:06:03,088 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 [2021-12-15 17:06:03,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:06:03,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:06:03,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:06:03,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:06:03,363 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:06:03,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2021-12-15 17:06:03,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09925249/6e0134a3917d4471a6c460379f97390c/FLAG622dcc11c [2021-12-15 17:06:03,755 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:06:03,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2021-12-15 17:06:03,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09925249/6e0134a3917d4471a6c460379f97390c/FLAG622dcc11c [2021-12-15 17:06:04,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09925249/6e0134a3917d4471a6c460379f97390c [2021-12-15 17:06:04,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:06:04,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:06:04,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:06:04,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:06:04,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:06:04,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a6796d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04, skipping insertion in model container [2021-12-15 17:06:04,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:06:04,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:06:04,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2021-12-15 17:06:04,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:06:04,493 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:06:04,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2021-12-15 17:06:04,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:06:04,576 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:06:04,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04 WrapperNode [2021-12-15 17:06:04,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:06:04,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:06:04,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:06:04,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:06:04,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,632 INFO L137 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 169 [2021-12-15 17:06:04,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:06:04,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:06:04,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:06:04,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:06:04,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:06:04,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:06:04,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:06:04,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:06:04,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (1/1) ... [2021-12-15 17:06:04,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:04,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:04,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:04,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-15 17:06:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:06:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:06:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 17:06:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 17:06:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:06:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:06:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 17:06:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 17:06:04,827 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:06:04,829 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:06:05,013 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:06:05,017 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:06:05,017 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-12-15 17:06:05,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:06:05 BoogieIcfgContainer [2021-12-15 17:06:05,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:06:05,019 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:06:05,019 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:06:05,022 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:06:05,022 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:06:05,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:06:04" (1/3) ... [2021-12-15 17:06:05,024 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75ed889a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:06:05, skipping insertion in model container [2021-12-15 17:06:05,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:06:05,024 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:06:04" (2/3) ... [2021-12-15 17:06:05,024 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75ed889a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:06:05, skipping insertion in model container [2021-12-15 17:06:05,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:06:05,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:06:05" (3/3) ... [2021-12-15 17:06:05,025 INFO L388 chiAutomizerObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2021-12-15 17:06:05,077 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:06:05,077 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:06:05,077 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:06:05,077 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:06:05,077 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:06:05,078 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:06:05,078 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:06:05,078 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:06:05,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 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) [2021-12-15 17:06:05,167 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 35 [2021-12-15 17:06:05,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:06:05,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:06:05,175 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:06:05,176 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:06:05,176 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:06:05,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 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) [2021-12-15 17:06:05,182 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 35 [2021-12-15 17:06:05,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:06:05,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:06:05,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:06:05,182 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:06:05,194 INFO L791 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 45#L33-3true [2021-12-15 17:06:05,195 INFO L793 eck$LassoCheckResult]: Loop: 45#L33-3true assume !!(main_~x~0#1 < 100000);call write~int(main_#t~nondet4#1, main_~#set~0#1.base, main_~#set~0#1.offset + 4 * main_~x~0#1, 4);havoc main_#t~nondet4#1; 35#L33-2true main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 45#L33-3true [2021-12-15 17:06:05,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:05,225 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:06:05,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:05,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294308716] [2021-12-15 17:06:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:05,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:05,372 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:06:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:05,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:06:05,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:05,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-12-15 17:06:05,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:05,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063621752] [2021-12-15 17:06:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:05,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:05,446 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:06:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:05,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:06:05,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:05,458 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-12-15 17:06:05,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:05,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701541755] [2021-12-15 17:06:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:05,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:05,508 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:06:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:05,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:06:05,899 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:06:05,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:06:05,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:06:05,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:06:05,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:06:05,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:05,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:06:05,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:06:05,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: data_structures_set_multi_proc_trivial_ground.i_Iteration1_Lasso [2021-12-15 17:06:05,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:06:05,901 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:06:05,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:05,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:06:06,422 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:06:06,425 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:06:06,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:06,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:06,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:06,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-15 17:06:06,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:06:06,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:06:06,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:06:06,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:06:06,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:06:06,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:06:06,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:06:06,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:06:06,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:06:06,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-15 17:06:06,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:06,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:06,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:06,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-15 17:06:06,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:06:06,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:06:06,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:06:06,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:06:06,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:06:06,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:06:06,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:06:06,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:06:06,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-15 17:06:06,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:06,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:06,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:06,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-15 17:06:06,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:06:06,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:06:06,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:06:06,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:06:06,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:06:06,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:06:06,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:06:06,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:06:06,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-15 17:06:06,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:06,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:06,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-15 17:06:06,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:06:06,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:06:06,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:06:06,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:06:06,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:06:06,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:06:06,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:06:06,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:06:06,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-15 17:06:06,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:06,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:06,669 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:06,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-15 17:06:06,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:06:06,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:06:06,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:06:06,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:06:06,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:06:06,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:06:06,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:06:06,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:06:06,709 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-15 17:06:06,709 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-15 17:06:06,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:06:06,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:06:06,711 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:06:06,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-15 17:06:06,717 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:06:06,725 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:06:06,725 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:06:06,726 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, v_rep(select #length ULTIMATE.start_main_~#set~0#1.base)_1) = -8*ULTIMATE.start_main_~x~0#1 + 199999*v_rep(select #length ULTIMATE.start_main_~#set~0#1.base)_1 Supporting invariants [] [2021-12-15 17:06:06,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-15 17:06:06,757 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2021-12-15 17:06:06,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-15 17:06:06,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:06:06,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:06:06,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:06:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:06:06,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 17:06:06,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:06:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:06:06,882 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:06:06,883 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-15 17:06:06,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 44 states have internal predecessors, (69), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 89 states and 139 transitions. Complement of second has 8 states. [2021-12-15 17:06:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:06:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-12-15 17:06:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2021-12-15 17:06:06,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 69 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-15 17:06:06,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:06:06,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 69 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-15 17:06:06,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:06:06,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 69 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-15 17:06:06,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:06:06,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 139 transitions. [2021-12-15 17:06:06,930 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2021-12-15 17:06:06,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 42 states and 65 transitions. [2021-12-15 17:06:06,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-12-15 17:06:06,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-12-15 17:06:06,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 65 transitions. [2021-12-15 17:06:06,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:06:06,934 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-12-15 17:06:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 65 transitions. [2021-12-15 17:06:06,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-15 17:06:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 41 states have internal predecessors, (65), 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) [2021-12-15 17:06:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2021-12-15 17:06:06,951 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-12-15 17:06:06,951 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 65 transitions. [2021-12-15 17:06:06,951 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:06:06,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 65 transitions. [2021-12-15 17:06:06,951 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2021-12-15 17:06:06,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:06:06,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:06:06,952 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 17:06:06,952 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:06:06,952 INFO L791 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 206#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 207#L33-3 assume !(main_~x~0#1 < 100000); 200#L33-4 main_~x~0#1 := 0; 201#L39-3 [2021-12-15 17:06:06,952 INFO L793 eck$LassoCheckResult]: Loop: 201#L39-3 assume !!(main_~x~0#1 < main_~n~0#1);main_~y~0#1 := 1 + main_~x~0#1; 214#L40-3 assume !true; 216#L39-2 main_#t~post5#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 201#L39-3 [2021-12-15 17:06:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-12-15 17:06:06,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:06,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868398313] [2021-12-15 17:06:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:06,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:06:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:06:06,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:06:06,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868398313] [2021-12-15 17:06:06,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868398313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:06:06,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:06:06,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:06:06,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531219836] [2021-12-15 17:06:06,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:06:06,980 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:06:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash 54297, now seen corresponding path program 1 times [2021-12-15 17:06:06,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:06,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264838520] [2021-12-15 17:06:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:06,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:06:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:06:06,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:06:06,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264838520] [2021-12-15 17:06:06,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264838520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:06:06,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:06:06,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:06:06,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844640203] [2021-12-15 17:06:06,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:06:06,987 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:06:06,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:06:06,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 17:06:06,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 17:06:06,991 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. cyclomatic complexity: 28 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-12-15 17:06:07,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:06:07,004 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2021-12-15 17:06:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 17:06:07,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 54 transitions. [2021-12-15 17:06:07,006 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 30 [2021-12-15 17:06:07,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 39 states and 51 transitions. [2021-12-15 17:06:07,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-12-15 17:06:07,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-12-15 17:06:07,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 51 transitions. [2021-12-15 17:06:07,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:06:07,007 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-12-15 17:06:07,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 51 transitions. [2021-12-15 17:06:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-12-15 17:06:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 38 states have internal predecessors, (51), 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) [2021-12-15 17:06:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-12-15 17:06:07,009 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-12-15 17:06:07,009 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-12-15 17:06:07,009 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:06:07,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 51 transitions. [2021-12-15 17:06:07,009 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 30 [2021-12-15 17:06:07,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:06:07,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:06:07,009 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 17:06:07,010 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:06:07,010 INFO L791 eck$LassoCheckResult]: Stem: 317#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(48, 2); 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post3#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post6#1, main_#t~post5#1, main_#t~nondet10#1, main_#t~post9#1, main_#t~mem12#1, main_#t~ret13#1, main_#t~mem14#1, main_#t~ret15#1, main_#t~mem18#1, main_#t~mem19#1, main_#t~post17#1, main_#t~post16#1, main_#t~post11#1, main_#t~mem22#1, main_#t~mem23#1, main_#t~post21#1, main_#t~post20#1, main_~n~0#1, main_~#set~0#1.base, main_~#set~0#1.offset, main_~x~0#1, main_~y~0#1, main_~#values~0#1.base, main_~#values~0#1.offset, main_~v~0#1;main_~n~0#1 := 0;call main_~#set~0#1.base, main_~#set~0#1.offset := #Ultimate.allocOnStack(400000);havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 0; 295#L33-3 assume !(main_~x~0#1 < 100000); 290#L33-4 main_~x~0#1 := 0; 291#L39-3 [2021-12-15 17:06:07,010 INFO L793 eck$LassoCheckResult]: Loop: 291#L39-3 assume !!(main_~x~0#1 < main_~n~0#1);main_~y~0#1 := 1 + main_~x~0#1; 300#L40-3 assume !(main_~y~0#1 < main_~n~0#1); 302#L39-2 main_#t~post5#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 291#L39-3 [2021-12-15 17:06:07,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 2 times [2021-12-15 17:06:07,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:07,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385484800] [2021-12-15 17:06:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:07,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:06:07,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:06:07,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:06:07,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385484800] [2021-12-15 17:06:07,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385484800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:06:07,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:06:07,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:06:07,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476895533] [2021-12-15 17:06:07,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:06:07,024 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:06:07,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:06:07,024 INFO L85 PathProgramCache]: Analyzing trace with hash 53832, now seen corresponding path program 1 times [2021-12-15 17:06:07,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:06:07,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175592585] [2021-12-15 17:06:07,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:06:07,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:06:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:07,027 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:06:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:06:07,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:06:07,045 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:818) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:06:07,048 INFO L158 Benchmark]: Toolchain (without parser) took 2860.73ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 53.0MB in the beginning and 82.8MB in the end (delta: -29.8MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-12-15 17:06:07,048 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:06:07,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.13ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 42.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:06:07,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.20ms. Allocated memory is still 92.3MB. Free memory was 42.3MB in the beginning and 40.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:06:07,049 INFO L158 Benchmark]: Boogie Preprocessor took 23.55ms. Allocated memory is still 132.1MB. Free memory was 111.2MB in the beginning and 109.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:06:07,050 INFO L158 Benchmark]: RCFGBuilder took 351.26ms. Allocated memory is still 132.1MB. Free memory was 109.6MB in the beginning and 97.5MB in the end (delta: 12.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-12-15 17:06:07,050 INFO L158 Benchmark]: BuchiAutomizer took 2027.86ms. Allocated memory is still 132.1MB. Free memory was 96.6MB in the beginning and 82.8MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-15 17:06:07,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.13ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 42.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.20ms. Allocated memory is still 92.3MB. Free memory was 42.3MB in the beginning and 40.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.55ms. Allocated memory is still 132.1MB. Free memory was 111.2MB in the beginning and 109.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.26ms. Allocated memory is still 132.1MB. Free memory was 109.6MB in the beginning and 97.5MB in the end (delta: 12.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2027.86ms. Allocated memory is still 132.1MB. Free memory was 96.6MB in the beginning and 82.8MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:06:07,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable