./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-04-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-04-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8 --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 64bit --witnessprinter.graph.data.programhash f308da08c261d59eb95c200bdea9061877e2637c8f9041803c89ef49e63b8c52 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:35:27,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:35:27,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:35:27,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:35:27,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:35:27,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:35:27,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:35:27,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:35:27,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:35:27,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:35:27,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:35:27,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:35:27,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:35:27,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:35:27,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:35:27,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:35:27,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:35:27,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:35:27,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:35:27,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:35:27,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:35:27,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:35:27,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:35:27,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:35:27,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:35:27,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:35:27,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:35:27,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:35:27,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:35:27,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:35:27,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:35:27,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:35:27,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:35:27,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:35:27,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:35:27,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:35:27,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:35:27,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:35:27,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:35:27,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:35:27,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:35:27,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 12:35:27,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:35:27,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:35:27,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:35:27,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:35:27,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:35:27,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:35:27,249 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:35:27,250 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:35:27,250 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:35:27,250 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:35:27,251 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:35:27,251 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:35:27,251 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:35:27,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:35:27,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:35:27,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:35:27,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:35:27,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:35:27,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:35:27,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:35:27,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:35:27,254 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:35:27,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:35:27,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:35:27,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:35:27,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:35:27,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:35:27,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:35:27,257 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:35:27,258 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_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f308da08c261d59eb95c200bdea9061877e2637c8f9041803c89ef49e63b8c52 [2022-11-16 12:35:27,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:27,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:27,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:27,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:27,619 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:27,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-bwb/and-04-false.c [2022-11-16 12:35:27,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/data/34e4f2132/e2d22a7071af4d99abb8c0c47487c6c6/FLAG406db2aef [2022-11-16 12:35:28,306 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:28,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/sv-benchmarks/c/termination-bwb/and-04-false.c [2022-11-16 12:35:28,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/data/34e4f2132/e2d22a7071af4d99abb8c0c47487c6c6/FLAG406db2aef [2022-11-16 12:35:28,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/data/34e4f2132/e2d22a7071af4d99abb8c0c47487c6c6 [2022-11-16 12:35:28,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:28,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:28,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:28,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:28,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:28,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58890284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28, skipping insertion in model container [2022-11-16 12:35:28,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:28,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:28,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:28,925 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:28,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:28,949 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:28,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28 WrapperNode [2022-11-16 12:35:28,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:28,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:28,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:28,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:28,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,979 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-16 12:35:28,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:28,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:28,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:28,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:28,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:28,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:29,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:29,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:29,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:29,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:29,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:29,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:29,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:29,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:29,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (1/1) ... [2022-11-16 12:35:29,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:29,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:29,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:29,130 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:29,134 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:29,276 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:29,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:29,287 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:35:29,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:29 BoogieIcfgContainer [2022-11-16 12:35:29,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:29,292 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:35:29,292 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:35:29,297 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:35:29,298 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:35:29,298 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:35:28" (1/3) ... [2022-11-16 12:35:29,299 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@777c11ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:35:29, skipping insertion in model container [2022-11-16 12:35:29,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:35:29,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:28" (2/3) ... [2022-11-16 12:35:29,300 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@777c11ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:35:29, skipping insertion in model container [2022-11-16 12:35:29,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:35:29,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:29" (3/3) ... [2022-11-16 12:35:29,302 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-04-false.c [2022-11-16 12:35:29,372 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:35:29,372 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:35:29,373 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:35:29,373 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:35:29,373 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:35:29,373 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:35:29,373 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:35:29,374 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:35:29,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:29,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:35:29,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:35:29,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:35:29,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:35:29,409 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:35:29,409 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:35:29,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:29,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-16 12:35:29,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:35:29,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:35:29,412 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:35:29,412 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:35:29,421 INFO L748 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L16-1true [2022-11-16 12:35:29,424 INFO L750 eck$LassoCheckResult]: Loop: 4#L16-1true assume !!(main_~x~0#1 < 8); 2#L16true assume !(0 == main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 4#L16-1true [2022-11-16 12:35:29,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:29,439 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 12:35:29,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:29,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227350443] [2022-11-16 12:35:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:29,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:35:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:35:29,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:29,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1329, now seen corresponding path program 1 times [2022-11-16 12:35:29,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:29,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265095142] [2022-11-16 12:35:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:29,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:35:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:35:29,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:29,564 INFO L85 PathProgramCache]: Analyzing trace with hash 925811, now seen corresponding path program 1 times [2022-11-16 12:35:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:29,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827577580] [2022-11-16 12:35:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:29,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:35:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:29,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:35:29,636 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:35:29,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:35:29,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:35:29,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:35:29,637 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:35:29,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:29,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:35:29,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:35:29,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Loop [2022-11-16 12:35:29,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:35:29,664 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:35:29,689 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:35:29,816 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:35:29,817 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:35:29,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:29,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:29,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:29,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:35:29,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:35:29,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:35:29,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:29,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:29,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:29,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:29,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:35:29,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:35:29,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:35:29,969 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:35:29,969 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1}] Lambdas: [0, 14, 1] Nus: [1, 0] [2022-11-16 12:35:29,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:29,983 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:35:29,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:35:29,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:35:29,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:35:29,983 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:35:29,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:29,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:35:29,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:35:29,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Lasso [2022-11-16 12:35:29,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:35:29,984 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:35:29,986 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:35:30,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:35:30,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:35:30,124 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:35:30,124 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:35:30,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:30,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:30,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:30,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:35:30,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:35:30,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:35:30,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:30,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:30,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:30,163 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:30,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:35:30,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:35:30,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:35:30,208 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:35:30,208 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1}] Lambdas: [0, 14, 1] Nus: [1, 0] [2022-11-16 12:35:30,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:30,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:30,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:30,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:30,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:35:30,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:35:30,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:35:30,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:35:30,263 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:35:30,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:30,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:35:30,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:30,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:30,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:35:30,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:35:30,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:35:30,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:35:30,287 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:35:30,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:35:30,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:35:30 BoogieIcfgContainer [2022-11-16 12:35:30,306 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:35:30,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:35:30,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:35:30,307 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:35:30,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:29" (3/4) ... [2022-11-16 12:35:30,311 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 12:35:30,336 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:35:30,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:35:30,337 INFO L158 Benchmark]: Toolchain (without parser) took 1637.59ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 66.8MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:30,338 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:30,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.20ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.1MB in the beginning and 84.4MB in the end (delta: -34.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-16 12:35:30,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.05ms. Allocated memory is still 107.0MB. Free memory was 84.4MB in the beginning and 83.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:30,340 INFO L158 Benchmark]: Boogie Preprocessor took 31.60ms. Allocated memory is still 107.0MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 955.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:30,340 INFO L158 Benchmark]: RCFGBuilder took 276.98ms. Allocated memory is still 107.0MB. Free memory was 82.0MB in the beginning and 73.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:35:30,341 INFO L158 Benchmark]: BuchiAutomizer took 1014.19ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 68.5MB in the end (delta: 4.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-16 12:35:30,341 INFO L158 Benchmark]: Witness Printer took 28.91ms. Allocated memory is still 107.0MB. Free memory was 68.5MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:30,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 78.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.20ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.1MB in the beginning and 84.4MB in the end (delta: -34.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.05ms. Allocated memory is still 107.0MB. Free memory was 84.4MB in the beginning and 83.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.60ms. Allocated memory is still 107.0MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 955.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.98ms. Allocated memory is still 107.0MB. Free memory was 82.0MB in the beginning and 73.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1014.19ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 68.5MB in the end (delta: 4.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 28.91ms. Allocated memory is still 107.0MB. Free memory was 68.5MB in the beginning and 66.8MB in the end (delta: 1.7MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 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 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {x=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366c75db=0, \result=0} State at position 1 is {x=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366c75db=0, \result=0} For i>1, the state at position i is {x=-1 + sum_{k=0}^i -1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366c75db=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 14, 1] Mus: [1, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] x = __VERIFIER_nondet_int() Loop: [L15] COND TRUE x < 8 [L16] COND FALSE !(x == 0) [L20] x = x-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:35:30,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b9f15f-8cd8-4423-9891-ed46d2eeb9ae/bin/uautomizer-tPACEb0tL8/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)