./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_accelerometer_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/psyco/psyco_accelerometer_1.c -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 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:03:14,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:03:14,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:03:14,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:03:14,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:03:14,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:03:14,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:03:14,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:03:14,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:03:14,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:03:14,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:03:14,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:03:14,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:03:14,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:03:14,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:03:14,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:03:14,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:03:14,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:03:14,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:03:14,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:03:14,565 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:03:14,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:03:14,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:03:14,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:03:14,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:03:14,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:03:14,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:03:14,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:03:14,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:03:14,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:03:14,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:03:14,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:03:14,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:03:14,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:03:14,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:03:14,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:03:14,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:03:14,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:03:14,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:03:14,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:03:14,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:03:14,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:03:14,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:03:14,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:03:14,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:03:14,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:03:14,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:03:14,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:03:14,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:03:14,634 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:03:14,634 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:03:14,634 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:03:14,634 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:03:14,634 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:03:14,635 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:03:14,635 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:03:14,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:03:14,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:03:14,638 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:03:14,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:03:14,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:03:14,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:03:14,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:03:14,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:03:14,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:03:14,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:03:14,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:03:14,640 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:03:14,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:03:14,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:03:14,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:03:14,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:03:14,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:03:14,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:03:14,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:03:14,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 [2022-07-23 15:03:14,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:03:14,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:03:14,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:03:14,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:03:14,884 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:03:14,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2022-07-23 15:03:14,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efade6598/e3ba07bc1ed94f40a7730efd3fd16ce3/FLAG7ac48695d [2022-07-23 15:03:15,585 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:03:15,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2022-07-23 15:03:15,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efade6598/e3ba07bc1ed94f40a7730efd3fd16ce3/FLAG7ac48695d [2022-07-23 15:03:15,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efade6598/e3ba07bc1ed94f40a7730efd3fd16ce3 [2022-07-23 15:03:15,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:03:15,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:03:15,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:03:15,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:03:15,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:03:15,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:03:15" (1/1) ... [2022-07-23 15:03:15,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec9dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:15, skipping insertion in model container [2022-07-23 15:03:15,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:03:15" (1/1) ... [2022-07-23 15:03:15,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:03:16,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:03:16,602 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/psyco/psyco_accelerometer_1.c[182833,182846] [2022-07-23 15:03:16,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:03:16,626 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:03:16,856 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/psyco/psyco_accelerometer_1.c[182833,182846] [2022-07-23 15:03:16,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:03:16,873 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:03:16,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16 WrapperNode [2022-07-23 15:03:16,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:03:16,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:03:16,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:03:16,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:03:16,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:16,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,009 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1255 [2022-07-23 15:03:17,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:03:17,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:03:17,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:03:17,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:03:17,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:03:17,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:03:17,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:03:17,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:03:17,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (1/1) ... [2022-07-23 15:03:17,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:03:17,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:03:17,196 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) [2022-07-23 15:03:17,217 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 [2022-07-23 15:03:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:03:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:03:17,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:03:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:03:17,362 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:03:17,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:03:18,615 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:03:18,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:03:18,623 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2022-07-23 15:03:18,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:03:18 BoogieIcfgContainer [2022-07-23 15:03:18,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:03:18,626 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:03:18,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:03:18,628 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:03:18,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:03:18,629 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:03:15" (1/3) ... [2022-07-23 15:03:18,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c89231d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:03:18, skipping insertion in model container [2022-07-23 15:03:18,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:03:18,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:03:16" (2/3) ... [2022-07-23 15:03:18,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c89231d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:03:18, skipping insertion in model container [2022-07-23 15:03:18,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:03:18,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:03:18" (3/3) ... [2022-07-23 15:03:18,632 INFO L354 chiAutomizerObserver]: Analyzing ICFG psyco_accelerometer_1.c [2022-07-23 15:03:18,680 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:03:18,680 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:03:18,680 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:03:18,681 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:03:18,681 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:03:18,681 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:03:18,681 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:03:18,681 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:03:18,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 236 states, 235 states have (on average 1.974468085106383) internal successors, (464), 235 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:03:18,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2022-07-23 15:03:18,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:03:18,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:03:18,732 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 15:03:18,732 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:03:18,732 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:03:18,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 236 states, 235 states have (on average 1.974468085106383) internal successors, (464), 235 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:03:18,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2022-07-23 15:03:18,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:03:18,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:03:18,748 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 15:03:18,748 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:03:18,754 INFO L752 eck$LassoCheckResult]: Stem: 229#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(24, 2);call #Ultimate.allocInit(12, 3);~m_init~0 := 1;~m_disconnect~0 := 2;~m_getValueX~0 := 3;~m_getValueY~0 := 4;~m_Accelerometer~0 := 5;~m_update~0 := 6;~m_dataReceived~0 := 7;~m_connect_1~0 := 8;~m_connect_2~0 := 9; 171#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~nondet60#1, main_#t~nondet61#1, main_#t~nondet62#1, main_#t~nondet63#1, main_#t~nondet64#1, main_#t~nondet65#1, main_#t~nondet66#1, main_#t~nondet67#1, main_#t~nondet68#1, main_#t~nondet69#1, main_#t~nondet70#1, main_#t~nondet71#1, main_#t~nondet72#1, main_#t~nondet73#1, main_#t~nondet74#1, main_#t~nondet75#1, main_#t~nondet76#1, main_#t~nondet77#1, main_#t~nondet78#1, main_#t~nondet79#1, main_#t~nondet80#1, main_#t~nondet81#1, main_#t~nondet82#1, main_#t~nondet83#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_m_conn~0#1, main_~this_m_sensitivity~0#1, main_~this_m_samples~0#1, main_~this_m_delta~0#1, main_~this_m_accX~0#1, main_~this_m_sensorInfo~0#1, main_~this_m_conn_data_listener~0#1, main_~this_m_accY~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_m_conn~0#1 := 0;main_~this_m_sensitivity~0#1 := 100;main_~this_m_samples~0#1 := 200;main_~this_m_delta~0#1 := 1;main_~this_m_accX~0#1 := 0;main_~this_m_sensorInfo~0#1 := 0;main_~this_m_conn_data_listener~0#1 := 0;main_~this_m_accY~0#1 := 0; 172#L34-2true [2022-07-23 15:03:18,754 INFO L754 eck$LassoCheckResult]: Loop: 172#L34-2true goto; 80#L1248true assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := (if 0 == main_#t~nondet7#1 then 0 else 1);havoc main_#t~nondet7#1;main_~P5~0#1 := (if 0 == main_#t~nondet8#1 then 0 else 1);havoc main_#t~nondet8#1;main_~P6~0#1 := (if 0 == main_#t~nondet9#1 then 0 else 1);havoc main_#t~nondet9#1; 13#L46true assume !(0 == main_~q~0#1); 33#L66true assume !(1 == main_~q~0#1); 214#L150true assume !(2 == main_~q~0#1); 46#L330true assume !(3 == main_~q~0#1); 77#L1070true assume !(4 == main_~q~0#1); 172#L34-2true [2022-07-23 15:03:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:03:18,759 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 15:03:18,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:03:18,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086604419] [2022-07-23 15:03:18,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:03:18,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:03:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:18,850 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:03:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:18,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:03:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:03:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1173980384, now seen corresponding path program 1 times [2022-07-23 15:03:18,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:03:18,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020405080] [2022-07-23 15:03:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:03:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:03:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:18,925 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:03:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:18,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:03:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:03:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash 372316446, now seen corresponding path program 1 times [2022-07-23 15:03:18,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:03:18,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615682258] [2022-07-23 15:03:18,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:03:18,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:03:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:03:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:03:19,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:03:19,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615682258] [2022-07-23 15:03:19,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615682258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:03:19,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:03:19,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:03:19,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527731487] [2022-07-23 15:03:19,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:03:19,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:03:19,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:03:19,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:03:19,266 INFO L87 Difference]: Start difference. First operand has 236 states, 235 states have (on average 1.974468085106383) internal successors, (464), 235 states have internal predecessors, (464), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:03:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:03:19,428 INFO L93 Difference]: Finished difference Result 230 states and 407 transitions. [2022-07-23 15:03:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:03:19,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 407 transitions. [2022-07-23 15:03:19,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2022-07-23 15:03:19,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 207 states and 322 transitions. [2022-07-23 15:03:19,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2022-07-23 15:03:19,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2022-07-23 15:03:19,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 322 transitions. [2022-07-23 15:03:19,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:03:19,458 INFO L369 hiAutomatonCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-23 15:03:19,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 322 transitions. [2022-07-23 15:03:19,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-07-23 15:03:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 206 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:03:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 322 transitions. [2022-07-23 15:03:19,500 INFO L392 hiAutomatonCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-23 15:03:19,501 INFO L374 stractBuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-23 15:03:19,501 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:03:19,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 322 transitions. [2022-07-23 15:03:19,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2022-07-23 15:03:19,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:03:19,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:03:19,503 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 15:03:19,503 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 15:03:19,503 INFO L752 eck$LassoCheckResult]: Stem: 681#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(24, 2);call #Ultimate.allocInit(12, 3);~m_init~0 := 1;~m_disconnect~0 := 2;~m_getValueX~0 := 3;~m_getValueY~0 := 4;~m_Accelerometer~0 := 5;~m_update~0 := 6;~m_dataReceived~0 := 7;~m_connect_1~0 := 8;~m_connect_2~0 := 9; 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~nondet60#1, main_#t~nondet61#1, main_#t~nondet62#1, main_#t~nondet63#1, main_#t~nondet64#1, main_#t~nondet65#1, main_#t~nondet66#1, main_#t~nondet67#1, main_#t~nondet68#1, main_#t~nondet69#1, main_#t~nondet70#1, main_#t~nondet71#1, main_#t~nondet72#1, main_#t~nondet73#1, main_#t~nondet74#1, main_#t~nondet75#1, main_#t~nondet76#1, main_#t~nondet77#1, main_#t~nondet78#1, main_#t~nondet79#1, main_#t~nondet80#1, main_#t~nondet81#1, main_#t~nondet82#1, main_#t~nondet83#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_m_conn~0#1, main_~this_m_sensitivity~0#1, main_~this_m_samples~0#1, main_~this_m_delta~0#1, main_~this_m_accX~0#1, main_~this_m_sensorInfo~0#1, main_~this_m_conn_data_listener~0#1, main_~this_m_accY~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_m_conn~0#1 := 0;main_~this_m_sensitivity~0#1 := 100;main_~this_m_samples~0#1 := 200;main_~this_m_delta~0#1 := 1;main_~this_m_accX~0#1 := 0;main_~this_m_sensorInfo~0#1 := 0;main_~this_m_conn_data_listener~0#1 := 0;main_~this_m_accY~0#1 := 0; 662#L34-2 goto; 524#L1248 [2022-07-23 15:03:19,504 INFO L754 eck$LassoCheckResult]: Loop: 524#L1248 assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := (if 0 == main_#t~nondet7#1 then 0 else 1);havoc main_#t~nondet7#1;main_~P5~0#1 := (if 0 == main_#t~nondet8#1 then 0 else 1);havoc main_#t~nondet8#1;main_~P6~0#1 := (if 0 == main_#t~nondet9#1 then 0 else 1);havoc main_#t~nondet9#1; 496#L46 assume 0 == main_~q~0#1; 497#L47 assume !(0 != main_#t~nondet10#1);havoc main_#t~nondet10#1; 524#L1248 [2022-07-23 15:03:19,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:03:19,505 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-07-23 15:03:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:03:19,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001170909] [2022-07-23 15:03:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:03:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:03:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:19,525 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:03:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:19,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:03:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:03:19,535 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-07-23 15:03:19,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:03:19,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758194488] [2022-07-23 15:03:19,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:03:19,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:03:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:19,540 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:03:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:19,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:03:19,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:03:19,546 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-07-23 15:03:19,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:03:19,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146343397] [2022-07-23 15:03:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:03:19,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:03:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:19,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:03:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:03:19,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:03:19,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:03:19 BoogieIcfgContainer [2022-07-23 15:03:19,965 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:03:19,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:03:19,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:03:19,966 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:03:19,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:03:18" (3/4) ... [2022-07-23 15:03:19,968 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:03:19,999 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:03:19,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:03:20,000 INFO L158 Benchmark]: Toolchain (without parser) took 4037.39ms. Allocated memory was 86.0MB in the beginning and 176.2MB in the end (delta: 90.2MB). Free memory was 50.7MB in the beginning and 68.1MB in the end (delta: -17.4MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,000 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:03:20,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 911.31ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 50.4MB in the beginning and 76.8MB in the end (delta: -26.3MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.87ms. Allocated memory is still 132.1MB. Free memory was 76.8MB in the beginning and 53.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,001 INFO L158 Benchmark]: Boogie Preprocessor took 154.05ms. Allocated memory is still 132.1MB. Free memory was 53.7MB in the beginning and 80.1MB in the end (delta: -26.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,002 INFO L158 Benchmark]: RCFGBuilder took 1458.03ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 80.1MB in the beginning and 96.1MB in the end (delta: -16.0MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,002 INFO L158 Benchmark]: BuchiAutomizer took 1339.63ms. Allocated memory is still 176.2MB. Free memory was 96.1MB in the beginning and 70.0MB in the end (delta: 26.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,002 INFO L158 Benchmark]: Witness Printer took 33.46ms. Allocated memory is still 176.2MB. Free memory was 69.1MB in the beginning and 68.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:03:20,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 911.31ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 50.4MB in the beginning and 76.8MB in the end (delta: -26.3MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.87ms. Allocated memory is still 132.1MB. Free memory was 76.8MB in the beginning and 53.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 154.05ms. Allocated memory is still 132.1MB. Free memory was 53.7MB in the beginning and 80.1MB in the end (delta: -26.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1458.03ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 80.1MB in the beginning and 96.1MB in the end (delta: -16.0MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1339.63ms. Allocated memory is still 176.2MB. Free memory was 96.1MB in the beginning and 70.0MB in the end (delta: 26.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 33.46ms. Allocated memory is still 176.2MB. Free memory was 69.1MB in the beginning and 68.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 207 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 728 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 325 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 403 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {m_getValueY=4, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eaeef19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@215b4327=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f475d36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24cbebf8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@591d3df2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4df00892=0, P4=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c485152=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@569ec41a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54173928=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69dbbed7=13, P2=16, q=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a559027=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e9827cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6135d566=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49883a79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22fea578=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52be55fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61f8c766=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d3e0f5e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b45e87a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@618f5c38=0, this_m_accX=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ef6544=0, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7425fc0f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70638afd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72beef7f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@767d5947=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d6f0893=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4813b9fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51d7e1c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60d4a2c6=15, this_m_delta=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@695ab633=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@688b2e84=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51b4f4d1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4486e59=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c897798=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77772490=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d008f42=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7846d2c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6712260f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17eb2ea4=0, P5=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1692e386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5952375=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@528ede7c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b3b716f=0, this_m_sensorInfo=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38634588=0, m_connect_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36e9653=0, this_m_conn=0, method_id=0, P3=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df5ee06=0, m_Accelerometer=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74154bed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b3604f8=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c4ae3be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ce0498a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c52893e=0, this_m_sensitivity=100, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13b2e5e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e5e3bd1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5314e72c=0, m_init=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c9b7ed3=0, P1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7055af8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@95989ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76c5887a=0, this_m_accY=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@120ba17c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@463c482d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11190e5b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a27e92f=0, m_connect_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6517bcce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dcee4cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f8de55c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10aba653=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d27e8e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21cc7eca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b91641d=14, this_m_samples=200, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f61af2e=10, m_disconnect=2, this_m_conn_data_listener=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59110189=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eec0335=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e298443=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@552ce412=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37dd1f30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e67554=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd72380=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56cbe723=0, P6=1, m_getValueX=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bc117d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e5e3270=0, m_dataReceived=7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_init = 1; [L8] int m_disconnect = 2; [L9] int m_getValueX = 3; [L10] int m_getValueY = 4; [L11] int m_Accelerometer = 5; [L12] int m_update = 6; [L13] int m_dataReceived = 7; [L14] int m_connect_1 = 8; [L15] int m_connect_2 = 9; [L20] int q = 0; [L21] int method_id; [L24] int this_m_conn = 0; [L25] int this_m_sensitivity = 100; [L26] int this_m_samples = 200; [L27] int this_m_delta = 1; [L28] int this_m_accX = 0; [L29] int this_m_sensorInfo = 0; [L30] int this_m_conn_data_listener = 0; [L31] int this_m_accY = 0; Loop: [L34] COND TRUE 1 [L37] int P1=__VERIFIER_nondet_int(); [L38] int P2=__VERIFIER_nondet_int(); [L39] int P3=__VERIFIER_nondet_int(); [L40] _Bool P4=__VERIFIER_nondet_int(); [L41] _Bool P5=__VERIFIER_nondet_int(); [L42] _Bool P6=__VERIFIER_nondet_int(); [L46] COND TRUE q == 0 [L47] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:03:20,055 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)