./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-19 18:30:16,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 18:30:16,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 18:30:16,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 18:30:16,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 18:30:16,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 18:30:16,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 18:30:16,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 18:30:16,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 18:30:16,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 18:30:16,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 18:30:16,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 18:30:16,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 18:30:16,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 18:30:16,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 18:30:16,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 18:30:16,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 18:30:16,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 18:30:16,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 18:30:16,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 18:30:16,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 18:30:16,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 18:30:16,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 18:30:16,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 18:30:16,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 18:30:16,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 18:30:16,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 18:30:16,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 18:30:16,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 18:30:16,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 18:30:16,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 18:30:16,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 18:30:16,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 18:30:16,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 18:30:16,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 18:30:16,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 18:30:16,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 18:30:16,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 18:30:16,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 18:30:16,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 18:30:16,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 18:30:16,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 18:30:16,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 18:30:16,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 18:30:16,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 18:30:16,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 18:30:16,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 18:30:16,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 18:30:16,715 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 18:30:16,715 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 18:30:16,715 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 18:30:16,716 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 18:30:16,716 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 18:30:16,716 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 18:30:16,716 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 18:30:16,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 18:30:16,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 18:30:16,717 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 18:30:16,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 18:30:16,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 18:30:16,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 18:30:16,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 18:30:16,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 18:30:16,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 18:30:16,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 18:30:16,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 18:30:16,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 18:30:16,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 18:30:16,720 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 18:30:16,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 [2021-12-19 18:30:16,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 18:30:16,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 18:30:16,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 18:30:16,921 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 18:30:16,922 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 18:30:16,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2021-12-19 18:30:17,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0529051/8a666881dd5b4bafb18b8cfc9eaf9743/FLAG2255a0747 [2021-12-19 18:30:17,593 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 18:30:17,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2021-12-19 18:30:17,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0529051/8a666881dd5b4bafb18b8cfc9eaf9743/FLAG2255a0747 [2021-12-19 18:30:17,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0529051/8a666881dd5b4bafb18b8cfc9eaf9743 [2021-12-19 18:30:17,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 18:30:17,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 18:30:17,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 18:30:17,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 18:30:17,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 18:30:17,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:30:17" (1/1) ... [2021-12-19 18:30:17,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ac9697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:17, skipping insertion in model container [2021-12-19 18:30:17,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:30:17" (1/1) ... [2021-12-19 18:30:17,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 18:30:17,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 18:30:18,294 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] [2021-12-19 18:30:18,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:30:18,315 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 18:30:18,463 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] [2021-12-19 18:30:18,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:30:18,476 INFO L208 MainTranslator]: Completed translation [2021-12-19 18:30:18,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18 WrapperNode [2021-12-19 18:30:18,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 18:30:18,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 18:30:18,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 18:30:18,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 18:30:18,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,632 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1255 [2021-12-19 18:30:18,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 18:30:18,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 18:30:18,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 18:30:18,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 18:30:18,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 18:30:18,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 18:30:18,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 18:30:18,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 18:30:18,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (1/1) ... [2021-12-19 18:30:18,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:30:18,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:30:18,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 18:30:18,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 18:30:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 18:30:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 18:30:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 18:30:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 18:30:18,927 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 18:30:18,929 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 18:30:19,939 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 18:30:19,951 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 18:30:19,951 INFO L301 CfgBuilder]: Removed 21 assume(true) statements. [2021-12-19 18:30:19,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:30:19 BoogieIcfgContainer [2021-12-19 18:30:19,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 18:30:19,956 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 18:30:19,956 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 18:30:19,958 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 18:30:19,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:30:19,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 06:30:17" (1/3) ... [2021-12-19 18:30:19,961 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25bb15fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:30:19, skipping insertion in model container [2021-12-19 18:30:19,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:30:19,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:30:18" (2/3) ... [2021-12-19 18:30:19,961 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25bb15fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:30:19, skipping insertion in model container [2021-12-19 18:30:19,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:30:19,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:30:19" (3/3) ... [2021-12-19 18:30:19,962 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_accelerometer_1.c [2021-12-19 18:30:20,008 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 18:30:20,008 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 18:30:20,008 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 18:30:20,008 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 18:30:20,008 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 18:30:20,009 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 18:30:20,009 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 18:30:20,009 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 18:30:20,034 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) [2021-12-19 18:30:20,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2021-12-19 18:30:20,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:30:20,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:30:20,079 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 18:30:20,079 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 18:30:20,079 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 18:30:20,081 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) [2021-12-19 18:30:20,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2021-12-19 18:30:20,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:30:20,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:30:20,091 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 18:30:20,091 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 18:30:20,096 INFO L791 eck$LassoCheckResult]: Stem: 230#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; 172#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; 173#L34-2true [2021-12-19 18:30:20,097 INFO L793 eck$LassoCheckResult]: Loop: 173#L34-2true goto; 81#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; 14#L46true assume !(0 == main_~q~0#1); 34#L66true assume !(1 == main_~q~0#1); 215#L150true assume !(2 == main_~q~0#1); 47#L330true assume !(3 == main_~q~0#1); 78#L1070true assume !(4 == main_~q~0#1); 173#L34-2true [2021-12-19 18:30:20,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:30:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-19 18:30:20,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:30:20,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723526686] [2021-12-19 18:30:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:30:20,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:30:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,198 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:30:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,242 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:30:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:30:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1173980384, now seen corresponding path program 1 times [2021-12-19 18:30:20,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:30:20,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885448644] [2021-12-19 18:30:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:30:20,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:30:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:30:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:30:20,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:30:20,305 INFO L85 PathProgramCache]: Analyzing trace with hash 372316446, now seen corresponding path program 1 times [2021-12-19 18:30:20,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:30:20,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34720075] [2021-12-19 18:30:20,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:30:20,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:30:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:30:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:30:20,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 18:30:20,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34720075] [2021-12-19 18:30:20,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34720075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 18:30:20,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 18:30:20,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 18:30:20,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117039845] [2021-12-19 18:30:20,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 18:30:20,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 18:30:20,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 18:30:20,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 18:30:20,594 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) [2021-12-19 18:30:20,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 18:30:20,722 INFO L93 Difference]: Finished difference Result 230 states and 407 transitions. [2021-12-19 18:30:20,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 18:30:20,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 407 transitions. [2021-12-19 18:30:20,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2021-12-19 18:30:20,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 207 states and 322 transitions. [2021-12-19 18:30:20,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2021-12-19 18:30:20,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2021-12-19 18:30:20,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 322 transitions. [2021-12-19 18:30:20,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 18:30:20,740 INFO L681 BuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2021-12-19 18:30:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 322 transitions. [2021-12-19 18:30:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-12-19 18:30:20,767 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) [2021-12-19 18:30:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 322 transitions. [2021-12-19 18:30:20,768 INFO L704 BuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2021-12-19 18:30:20,768 INFO L587 BuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2021-12-19 18:30:20,768 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 18:30:20,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 322 transitions. [2021-12-19 18:30:20,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2021-12-19 18:30:20,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:30:20,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:30:20,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-19 18:30:20,770 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 18:30:20,770 INFO L791 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 [2021-12-19 18:30:20,770 INFO L793 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 [2021-12-19 18:30:20,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:30:20,771 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-12-19 18:30:20,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:30:20,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640164777] [2021-12-19 18:30:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:30:20,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:30:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,778 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:30:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:30:20,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:30:20,802 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-12-19 18:30:20,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:30:20,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594161232] [2021-12-19 18:30:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:30:20,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:30:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,809 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:30:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:30:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:30:20,815 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-12-19 18:30:20,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:30:20,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872896594] [2021-12-19 18:30:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:30:20,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:30:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,824 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:30:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:30:20,835 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:30:21,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 06:30:21 BoogieIcfgContainer [2021-12-19 18:30:21,224 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 18:30:21,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 18:30:21,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 18:30:21,225 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 18:30:21,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:30:19" (3/4) ... [2021-12-19 18:30:21,227 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 18:30:21,254 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 18:30:21,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 18:30:21,256 INFO L158 Benchmark]: Toolchain (without parser) took 3502.00ms. Allocated memory was 75.5MB in the beginning and 218.1MB in the end (delta: 142.6MB). Free memory was 47.2MB in the beginning and 92.2MB in the end (delta: -45.0MB). Peak memory consumption was 97.5MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,256 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:30:21,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 718.69ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 47.0MB in the beginning and 53.0MB in the end (delta: -6.0MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.47ms. Allocated memory is still 102.8MB. Free memory was 53.0MB in the beginning and 53.7MB in the end (delta: -675.7kB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,257 INFO L158 Benchmark]: Boogie Preprocessor took 105.97ms. Allocated memory is still 102.8MB. Free memory was 53.7MB in the beginning and 41.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,257 INFO L158 Benchmark]: RCFGBuilder took 1213.79ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 57.8MB in the end (delta: -16.1MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,258 INFO L158 Benchmark]: BuchiAutomizer took 1268.02ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 57.8MB in the beginning and 94.0MB in the end (delta: -36.2MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,258 INFO L158 Benchmark]: Witness Printer took 30.67ms. Allocated memory is still 218.1MB. Free memory was 94.0MB in the beginning and 92.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 18:30:21,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 718.69ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 47.0MB in the beginning and 53.0MB in the end (delta: -6.0MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.47ms. Allocated memory is still 102.8MB. Free memory was 53.0MB in the beginning and 53.7MB in the end (delta: -675.7kB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.97ms. Allocated memory is still 102.8MB. Free memory was 53.7MB in the beginning and 41.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1213.79ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 57.8MB in the end (delta: -16.1MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1268.02ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 57.8MB in the beginning and 94.0MB in the end (delta: -36.2MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Witness Printer took 30.67ms. Allocated memory is still 218.1MB. Free memory was 94.0MB in the beginning and 92.2MB in the end (delta: 1.9MB). 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 0.8s. 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 207 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 - 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@332a4068=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42c14af8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58799e1e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@668927db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@359368a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71140897=0, P4=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb8fdf1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@428b2490=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e0f47bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3281524f=10, P2=13, q=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27beb56d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5753446d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@739a3332=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f1217a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46826116=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35be945d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@123975ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45ac8491=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d296d3a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@138443c9=0, this_m_accX=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65e350c4=0, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d972831=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46ac4644=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79d0118c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c7ace8c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e59392=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42b3d328=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37aa6383=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c8392a7=14, this_m_delta=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64f4054a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ebe7627=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@143d2b36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b75fedf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ec4f12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1af4d07d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16095a50=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52a05b2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3933e980=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e9dbe14=0, P5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5154c9a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28ba2a17=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461710f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25bc0587=0, this_m_sensorInfo=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cd39d1d=0, m_connect_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4642ff2e=0, this_m_conn=0, method_id=0, P3=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e390df3=0, m_Accelerometer=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28c29839=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ba9b7aa=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cdd835f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72ced80f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@544dddc3=0, this_m_sensitivity=100, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a3f21e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57bc8649=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a360bf8=0, m_init=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ae36f07=0, P1=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68b9277f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a971d68=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57c94953=0, this_m_accY=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62d7ca43=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14ecc6d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cb9c198=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dc50ae7=0, m_connect_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3df0c327=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@242dac24=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b8096a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b37a44a=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ad529b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a12bb8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4db54eb1=0, this_m_samples=200, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e80297f=11, m_disconnect=2, this_m_conn_data_listener=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@691a2411=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@365db2a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@160e268d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bb11321=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37249e90=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@98d7fef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7261e0e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74071bd3=0, P6=1, m_getValueX=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30942769=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31a5e56c=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! [2021-12-19 18:30:21,295 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)