./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/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-?-3598765 [2022-07-22 02:14:17,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:14:17,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:14:17,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:14:17,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:14:17,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:14:17,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:14:17,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:14:17,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:14:17,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:14:17,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:14:17,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:14:17,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:14:17,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:14:17,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:14:17,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:14:17,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:14:17,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:14:17,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:14:17,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:14:17,705 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:14:17,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:14:17,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:14:17,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:14:17,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:14:17,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:14:17,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:14:17,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:14:17,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:14:17,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:14:17,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:14:17,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:14:17,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:14:17,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:14:17,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:14:17,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:14:17,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:14:17,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:14:17,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:14:17,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:14:17,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:14:17,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:14:17,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:14:17,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:14:17,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:14:17,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:14:17,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:14:17,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:14:17,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:14:17,771 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:14:17,771 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:14:17,771 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:14:17,772 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:14:17,772 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:14:17,772 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:14:17,773 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:14:17,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:14:17,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:14:17,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:14:17,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:14:17,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:14:17,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:14:17,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:14:17,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:14:17,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:14:17,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:14:17,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:14:17,774 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:14:17,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:14:17,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:14:17,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:14:17,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:14:17,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:14:17,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:14:17,777 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:14:17,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 [2022-07-22 02:14:18,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:14:18,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:14:18,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:14:18,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:14:18,090 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:14:18,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2022-07-22 02:14:18,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e487b7444/2611d35afdee4cc5bda0a3cbda100a27/FLAGedb52081b [2022-07-22 02:14:18,724 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:14:18,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2022-07-22 02:14:18,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e487b7444/2611d35afdee4cc5bda0a3cbda100a27/FLAGedb52081b [2022-07-22 02:14:19,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e487b7444/2611d35afdee4cc5bda0a3cbda100a27 [2022-07-22 02:14:19,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:14:19,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:14:19,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:14:19,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:14:19,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:14:19,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:19,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f630f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19, skipping insertion in model container [2022-07-22 02:14:19,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:19,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:14:19,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:14:19,728 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] [2022-07-22 02:14:19,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:14:19,761 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:14:19,925 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] [2022-07-22 02:14:19,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:14:19,941 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:14:19,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19 WrapperNode [2022-07-22 02:14:19,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:14:19,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:14:19,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:14:19,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:14:19,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:19,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,066 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1255 [2022-07-22 02:14:20,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:14:20,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:14:20,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:14:20,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:14:20,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:14:20,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:14:20,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:14:20,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:14:20,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (1/1) ... [2022-07-22 02:14:20,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:14:20,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:14:20,259 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) [2022-07-22 02:14:20,266 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 [2022-07-22 02:14:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:14:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:14:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:14:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:14:20,361 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:14:20,362 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:14:21,283 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:14:21,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:14:21,294 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2022-07-22 02:14:21,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:14:21 BoogieIcfgContainer [2022-07-22 02:14:21,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:14:21,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:14:21,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:14:21,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:14:21,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:14:21,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:14:19" (1/3) ... [2022-07-22 02:14:21,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@490ac7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:14:21, skipping insertion in model container [2022-07-22 02:14:21,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:14:21,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:14:19" (2/3) ... [2022-07-22 02:14:21,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@490ac7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:14:21, skipping insertion in model container [2022-07-22 02:14:21,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:14:21,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:14:21" (3/3) ... [2022-07-22 02:14:21,303 INFO L354 chiAutomizerObserver]: Analyzing ICFG psyco_accelerometer_1.c [2022-07-22 02:14:21,354 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:14:21,354 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:14:21,354 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:14:21,354 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:14:21,354 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:14:21,355 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:14:21,355 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:14:21,355 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:14:21,359 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) [2022-07-22 02:14:21,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2022-07-22 02:14:21,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:14:21,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:14:21,388 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:14:21,388 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:14:21,388 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:14:21,389 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) [2022-07-22 02:14:21,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2022-07-22 02:14:21,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:14:21,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:14:21,395 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:14:21,395 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:14:21,400 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 [2022-07-22 02:14:21,401 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 [2022-07-22 02:14:21,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:14:21,405 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 02:14:21,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:14:21,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420603262] [2022-07-22 02:14:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:14:21,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:14:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,471 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:14:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:14:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:14:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1173980384, now seen corresponding path program 1 times [2022-07-22 02:14:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:14:21,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733102124] [2022-07-22 02:14:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:14:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:14:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:14:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:14:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:14:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash 372316446, now seen corresponding path program 1 times [2022-07-22 02:14:21,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:14:21,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403223378] [2022-07-22 02:14:21,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:14:21,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:14:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:14:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:14:21,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:14:21,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403223378] [2022-07-22 02:14:21,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403223378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:14:21,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:14:21,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:14:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903800316] [2022-07-22 02:14:21,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:14:21,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:14:21,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:14:21,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:14:21,695 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) [2022-07-22 02:14:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:14:21,798 INFO L93 Difference]: Finished difference Result 230 states and 407 transitions. [2022-07-22 02:14:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:14:21,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 407 transitions. [2022-07-22 02:14:21,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2022-07-22 02:14:21,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 207 states and 322 transitions. [2022-07-22 02:14:21,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2022-07-22 02:14:21,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2022-07-22 02:14:21,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 322 transitions. [2022-07-22 02:14:21,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:14:21,813 INFO L369 hiAutomatonCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-22 02:14:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 322 transitions. [2022-07-22 02:14:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-07-22 02:14:21,837 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) [2022-07-22 02:14:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 322 transitions. [2022-07-22 02:14:21,838 INFO L392 hiAutomatonCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-22 02:14:21,838 INFO L374 stractBuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-22 02:14:21,839 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:14:21,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 322 transitions. [2022-07-22 02:14:21,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2022-07-22 02:14:21,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:14:21,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:14:21,840 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 02:14:21,840 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:14:21,841 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 [2022-07-22 02:14:21,841 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 [2022-07-22 02:14:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:14:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-07-22 02:14:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:14:21,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232698685] [2022-07-22 02:14:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:14:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:14:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:14:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:14:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:14:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-07-22 02:14:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:14:21,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556333621] [2022-07-22 02:14:21,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:14:21,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:14:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,861 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:14:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:14:21,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:14:21,867 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-07-22 02:14:21,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:14:21,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148011386] [2022-07-22 02:14:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:14:21,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:14:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,875 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:14:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:14:21,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:14:22,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:14:22 BoogieIcfgContainer [2022-07-22 02:14:22,228 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:14:22,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:14:22,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:14:22,229 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:14:22,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:14:21" (3/4) ... [2022-07-22 02:14:22,232 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 02:14:22,270 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 02:14:22,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:14:22,275 INFO L158 Benchmark]: Toolchain (without parser) took 3131.75ms. Allocated memory was 77.6MB in the beginning and 195.0MB in the end (delta: 117.4MB). Free memory was 54.5MB in the beginning and 117.3MB in the end (delta: -62.8MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,275 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:14:22,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 800.15ms. Allocated memory was 77.6MB in the beginning and 109.1MB in the end (delta: 31.5MB). Free memory was 54.3MB in the beginning and 67.3MB in the end (delta: -13.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.14ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 63.6MB in the end (delta: 3.7MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,276 INFO L158 Benchmark]: Boogie Preprocessor took 147.40ms. Allocated memory is still 109.1MB. Free memory was 63.6MB in the beginning and 51.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,277 INFO L158 Benchmark]: RCFGBuilder took 1080.82ms. Allocated memory was 109.1MB in the beginning and 195.0MB in the end (delta: 86.0MB). Free memory was 51.3MB in the beginning and 130.0MB in the end (delta: -78.8MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,277 INFO L158 Benchmark]: BuchiAutomizer took 931.15ms. Allocated memory is still 195.0MB. Free memory was 130.0MB in the beginning and 119.2MB in the end (delta: 10.8MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,277 INFO L158 Benchmark]: Witness Printer took 41.95ms. Allocated memory is still 195.0MB. Free memory was 118.4MB in the beginning and 117.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:14:22,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 800.15ms. Allocated memory was 77.6MB in the beginning and 109.1MB in the end (delta: 31.5MB). Free memory was 54.3MB in the beginning and 67.3MB in the end (delta: -13.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.14ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 63.6MB in the end (delta: 3.7MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 147.40ms. Allocated memory is still 109.1MB. Free memory was 63.6MB in the beginning and 51.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1080.82ms. Allocated memory was 109.1MB in the beginning and 195.0MB in the end (delta: 86.0MB). Free memory was 51.3MB in the beginning and 130.0MB in the end (delta: -78.8MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 931.15ms. Allocated memory is still 195.0MB. Free memory was 130.0MB in the beginning and 119.2MB in the end (delta: 10.8MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Witness Printer took 41.95ms. Allocated memory is still 195.0MB. Free memory was 118.4MB in the beginning and 117.3MB 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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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@68c9a243=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a5b46b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@453fdcb4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45bbc779=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ad15f52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41ef7202=0, P4=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d5f2164=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36563b03=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6de672a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d1b2ce4=13, P2=16, q=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40aec88e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e7f1d6c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35e77088=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3011d05c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fbb3fce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53c246b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b02fbbb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f1a5fb9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48df0e14=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fec4b1a=0, this_m_accX=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1256e917=0, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42a02b97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b2c9955=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58c5a43d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56e41c36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ace4fb2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ac218aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1877c768=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1292d7f5=15, this_m_delta=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fdf3229=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6442b52c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f273e8e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@262083eb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75a88725=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@557673db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75e952cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@418be8a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ed7335c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7919dd27=0, P5=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@304b1f6d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a96fd2e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13b4164d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d34d664=0, this_m_sensorInfo=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4834089d=0, m_connect_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@785d5398=0, this_m_conn=0, method_id=0, P3=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@657526c5=0, m_Accelerometer=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@690c5251=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@503f97e7=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69777bc1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7885522f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a67c29f=0, this_m_sensitivity=100, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cd99f63=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39a7c45b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e7c18fb=0, m_init=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70db3c7=0, P1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53ca933=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bdfec01=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@385dbc95=0, this_m_accY=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e9ac80=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cb60776=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a70a362=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@319b942f=0, m_connect_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28214599=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b3b9f07=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d6f7ee0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55d6526f=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66e887a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5687debd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79fa6218=14, this_m_samples=200, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4380e4a3=10, m_disconnect=2, this_m_conn_data_listener=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a0a02c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c822354=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fc925f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ff0a5f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@248aafb0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c0b4d1a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62dd2ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72936e6a=0, P6=1, m_getValueX=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e3de0c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51811292=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! [2022-07-22 02:14:22,338 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)