./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_accelerometer_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF --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 0.2.1-dev-53f42b1 [2021-11-20 06:45:35,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:45:35,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:45:36,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:45:36,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:45:36,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:45:36,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:45:36,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:45:36,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:45:36,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:45:36,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:45:36,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:45:36,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:45:36,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:45:36,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:45:36,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:45:36,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:45:36,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:45:36,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:45:36,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:45:36,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:45:36,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:45:36,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:45:36,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:45:36,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:45:36,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:45:36,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:45:36,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:45:36,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:45:36,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:45:36,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:45:36,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:45:36,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:45:36,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:45:36,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:45:36,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:45:36,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:45:36,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:45:36,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:45:36,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:45:36,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:45:36,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 06:45:36,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:45:36,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:45:36,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:45:36,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:45:36,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:45:36,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:45:36,126 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:45:36,126 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:45:36,126 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:45:36,126 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:45:36,127 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:45:36,127 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:45:36,127 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:45:36,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:45:36,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:45:36,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:45:36,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:45:36,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:45:36,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:45:36,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:45:36,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:45:36,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:45:36,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:45:36,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:45:36,130 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:45:36,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:45:36,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:45:36,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:45:36,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:45:36,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:45:36,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:45:36,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:45:36,132 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:45:36,133 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 [2021-11-20 06:45:36,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:45:36,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:45:36,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:45:36,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:45:36,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:45:36,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2021-11-20 06:45:36,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/data/8e6381daa/a49c1146e02c40819574e8ec890ba809/FLAGe479089bd [2021-11-20 06:45:37,236 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:45:37,237 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2021-11-20 06:45:37,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/data/8e6381daa/a49c1146e02c40819574e8ec890ba809/FLAGe479089bd [2021-11-20 06:45:37,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/data/8e6381daa/a49c1146e02c40819574e8ec890ba809 [2021-11-20 06:45:37,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:45:37,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:45:37,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:45:37,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:45:37,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:45:37,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:37" (1/1) ... [2021-11-20 06:45:37,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b69a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:37, skipping insertion in model container [2021-11-20 06:45:37,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:45:37" (1/1) ... [2021-11-20 06:45:37,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:45:37,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:45:38,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/sv-benchmarks/c/psyco/psyco_accelerometer_1.c[182833,182846] [2021-11-20 06:45:38,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:45:38,690 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:45:38,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/sv-benchmarks/c/psyco/psyco_accelerometer_1.c[182833,182846] [2021-11-20 06:45:39,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:45:39,016 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:45:39,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39 WrapperNode [2021-11-20 06:45:39,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:45:39,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:45:39,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:45:39,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:45:39,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,257 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1255 [2021-11-20 06:45:39,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:45:39,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:45:39,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:45:39,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:45:39,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:45:39,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:45:39,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:45:39,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:45:39,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (1/1) ... [2021-11-20 06:45:39,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:45:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:45:39,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:45:39,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:45:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:45:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:45:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:45:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:45:39,675 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:45:39,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:45:41,259 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:45:41,274 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:45:41,274 INFO L301 CfgBuilder]: Removed 21 assume(true) statements. [2021-11-20 06:45:41,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:41 BoogieIcfgContainer [2021-11-20 06:45:41,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:45:41,280 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:45:41,280 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:45:41,283 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:45:41,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:45:41,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:45:37" (1/3) ... [2021-11-20 06:45:41,285 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@682bb682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:45:41, skipping insertion in model container [2021-11-20 06:45:41,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:45:41,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:45:39" (2/3) ... [2021-11-20 06:45:41,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@682bb682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:45:41, skipping insertion in model container [2021-11-20 06:45:41,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:45:41,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:41" (3/3) ... [2021-11-20 06:45:41,288 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_accelerometer_1.c [2021-11-20 06:45:41,347 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:45:41,347 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:45:41,347 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:45:41,348 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:45:41,348 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:45:41,348 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:45:41,348 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:45:41,348 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:45:41,382 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) [2021-11-20 06:45:41,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2021-11-20 06:45:41,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:45:41,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:45:41,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:45:41,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:45:41,442 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:45:41,445 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) [2021-11-20 06:45:41,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2021-11-20 06:45:41,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:45:41,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:45:41,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:45:41,463 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:45:41,472 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 [2021-11-20 06:45:41,473 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 [2021-11-20 06:45:41,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:45:41,485 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 06:45:41,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:45:41,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819302504] [2021-11-20 06:45:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:45:41,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:45:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:41,597 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:45:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:41,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:45:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:45:41,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1173980384, now seen corresponding path program 1 times [2021-11-20 06:45:41,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:45:41,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070162986] [2021-11-20 06:45:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:45:41,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:45:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:41,683 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:45:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:41,703 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:45:41,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:45:41,705 INFO L85 PathProgramCache]: Analyzing trace with hash 372316446, now seen corresponding path program 1 times [2021-11-20 06:45:41,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:45:41,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730707799] [2021-11-20 06:45:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:45:41,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:45:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:45:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:45:41,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:45:41,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730707799] [2021-11-20 06:45:41,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730707799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:45:41,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:45:41,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:45:41,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380733089] [2021-11-20 06:45:41,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:45:41,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:45:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:45:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:45:42,026 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) [2021-11-20 06:45:42,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:45:42,249 INFO L93 Difference]: Finished difference Result 230 states and 407 transitions. [2021-11-20 06:45:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:45:42,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 407 transitions. [2021-11-20 06:45:42,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2021-11-20 06:45:42,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 207 states and 322 transitions. [2021-11-20 06:45:42,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2021-11-20 06:45:42,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2021-11-20 06:45:42,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 322 transitions. [2021-11-20 06:45:42,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:45:42,283 INFO L681 BuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2021-11-20 06:45:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 322 transitions. [2021-11-20 06:45:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-11-20 06:45:42,326 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) [2021-11-20 06:45:42,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 322 transitions. [2021-11-20 06:45:42,328 INFO L704 BuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2021-11-20 06:45:42,328 INFO L587 BuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2021-11-20 06:45:42,328 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:45:42,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 322 transitions. [2021-11-20 06:45:42,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2021-11-20 06:45:42,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:45:42,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:45:42,331 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 06:45:42,331 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 06:45:42,331 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 [2021-11-20 06:45:42,332 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 [2021-11-20 06:45:42,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:45:42,332 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-11-20 06:45:42,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:45:42,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544379647] [2021-11-20 06:45:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:45:42,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:45:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:42,343 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:45:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:42,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:45:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:45:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-11-20 06:45:42,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:45:42,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132172477] [2021-11-20 06:45:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:45:42,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:45:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:42,388 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:45:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:42,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:45:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:45:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-11-20 06:45:42,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:45:42,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551882376] [2021-11-20 06:45:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:45:42,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:45:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:42,414 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:45:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:45:42,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:45:42,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:45:42 BoogieIcfgContainer [2021-11-20 06:45:42,936 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:45:42,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:45:42,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:45:42,937 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:45:42,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:45:41" (3/4) ... [2021-11-20 06:45:42,940 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 06:45:42,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:45:42,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:45:42,981 INFO L158 Benchmark]: Toolchain (without parser) took 5183.34ms. Allocated memory was 92.3MB in the beginning and 260.0MB in the end (delta: 167.8MB). Free memory was 58.5MB in the beginning and 136.0MB in the end (delta: -77.5MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,982 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:45:42,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1218.93ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 58.3MB in the beginning and 68.3MB in the end (delta: -10.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.56ms. Allocated memory is still 123.7MB. Free memory was 68.3MB in the beginning and 72.4MB in the end (delta: -4.1MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,984 INFO L158 Benchmark]: Boogie Preprocessor took 218.48ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 72.4MB in the beginning and 122.0MB in the end (delta: -49.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,984 INFO L158 Benchmark]: RCFGBuilder took 1799.49ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 92.3MB in the end (delta: 29.6MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,985 INFO L158 Benchmark]: BuchiAutomizer took 1656.31ms. Allocated memory was 180.4MB in the beginning and 260.0MB in the end (delta: 79.7MB). Free memory was 92.3MB in the beginning and 138.1MB in the end (delta: -45.7MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,985 INFO L158 Benchmark]: Witness Printer took 43.62ms. Allocated memory is still 260.0MB. Free memory was 138.1MB in the beginning and 136.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:45:42,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1218.93ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 58.3MB in the beginning and 68.3MB in the end (delta: -10.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.56ms. Allocated memory is still 123.7MB. Free memory was 68.3MB in the beginning and 72.4MB in the end (delta: -4.1MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 218.48ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 72.4MB in the beginning and 122.0MB in the end (delta: -49.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1799.49ms. Allocated memory is still 180.4MB. Free memory was 122.0MB in the beginning and 92.3MB in the end (delta: 29.6MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 1656.31ms. Allocated memory was 180.4MB in the beginning and 260.0MB in the end (delta: 79.7MB). Free memory was 92.3MB in the beginning and 138.1MB in the end (delta: -45.7MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Witness Printer took 43.62ms. Allocated memory is still 260.0MB. Free memory was 138.1MB in the beginning and 136.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 207 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 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, 0.2s 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@5be52390=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f5afc91=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c3891d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bfec83b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cd21f26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1324d1a5=0, P4=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4eef2240=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3009e8f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@272240ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61512023=10, P2=15, q=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62dd892d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@190e9e82=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@433506c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d788bd9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22de2001=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4aa6e1f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b104d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@572a04d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bed28c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15634211=0, this_m_accX=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@372da0ee=0, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d59a7d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ecea706=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b333836=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29a5d76=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e6b9b4f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60e3b8d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35c22ef7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a060bbf=16, this_m_delta=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49b7bfba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71ea857b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79be6691=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@db86600=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eb7cbc2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f86119f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e9e36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@381c0450=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fd3026b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f6334c2=0, P5=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@796b486d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15baf9c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23b00851=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@793c1cb3=0, this_m_sensorInfo=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a7cf7f1=0, m_connect_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51e9efd5=0, this_m_conn=0, method_id=0, P3=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77f4a564=0, m_Accelerometer=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6419e54a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f722347=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43b2c618=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e9ba454=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a71938c=0, this_m_sensitivity=100, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b9cd3d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c3a8cf5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bc618c2=0, m_init=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a519e71=0, P1=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e171d2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cb98a7e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2182df5d=0, this_m_accY=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@140406c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61b375ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@231dfcfb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cb410cf=0, m_connect_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ce47fef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@381c4cfb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f34f194=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21dcc7dd=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@282f3716=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fdce28c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ffab97e=11, this_m_samples=200, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36e70847=13, m_disconnect=2, this_m_conn_data_listener=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f1c84c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1062b2ac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64da72b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b8d6baa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3937c204=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a801d2b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31d0693e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58d6a617=0, P6=1, m_getValueX=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16fa4e10=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e0b5816=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! [2021-11-20 06:45:43,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70c550a-b163-4a06-ac96-00a1b041bd66/bin/uautomizer-DQz5hQGWxF/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)