./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/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_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/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_6ee97539-0655-410a-9bc7-14dc7c5d8234/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 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a --- 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 11:35:21,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:35:21,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:35:21,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:35:21,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:35:21,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:35:21,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:35:21,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:35:21,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:35:21,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:35:21,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:35:21,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:35:21,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:35:21,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:35:21,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:35:21,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:35:21,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:35:21,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:35:21,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:35:21,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:35:21,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:35:21,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:35:21,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:35:21,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:35:21,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:35:21,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:35:21,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:35:21,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:35:21,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:35:21,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:35:21,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:35:21,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:35:21,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:35:21,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:35:21,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:35:21,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:35:21,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:35:21,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:35:21,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:35:21,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:35:21,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:35:21,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:35:21,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:35:21,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:35:21,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:35:21,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:35:21,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:35:21,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:35:21,412 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:35:21,412 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:35:21,413 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:35:21,413 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:35:21,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:35:21,413 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:35:21,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:35:21,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:35:21,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:35:21,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:35:21,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:35:21,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:35:21,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:35:21,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:35:21,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:35:21,417 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:35:21,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:35:21,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:35:21,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:35:21,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:35:21,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:35:21,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:35:21,422 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:35:21,423 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_6ee97539-0655-410a-9bc7-14dc7c5d8234/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a [2022-11-16 11:35:21,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:35:21,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:35:21,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:35:21,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:35:21,829 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:35:21,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2022-11-16 11:35:21,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/data/bc98c529f/63df50cd965f4c56b834a37478d5b57a/FLAGd9c9f09ab [2022-11-16 11:35:22,695 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:35:22,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2022-11-16 11:35:22,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/data/bc98c529f/63df50cd965f4c56b834a37478d5b57a/FLAGd9c9f09ab [2022-11-16 11:35:22,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/data/bc98c529f/63df50cd965f4c56b834a37478d5b57a [2022-11-16 11:35:22,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:35:22,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:35:22,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:35:22,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:35:22,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:35:22,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:22" (1/1) ... [2022-11-16 11:35:22,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3e903b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:22, skipping insertion in model container [2022-11-16 11:35:22,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:22" (1/1) ... [2022-11-16 11:35:22,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:35:22,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:35:23,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:35:23,146 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:35:23,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:35:23,215 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:35:23,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23 WrapperNode [2022-11-16 11:35:23,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:35:23,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:35:23,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:35:23,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:35:23,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,290 INFO L138 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-16 11:35:23,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:35:23,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:35:23,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:35:23,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:35:23,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:35:23,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:35:23,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:35:23,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:35:23,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (1/1) ... [2022-11-16 11:35:23,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:23,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:23,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:23,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:35:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:35:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:35:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:35:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:35:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:35:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:35:23,632 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:35:23,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:35:23,760 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:35:23,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:35:23,767 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:35:23,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:23 BoogieIcfgContainer [2022-11-16 11:35:23,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:35:23,771 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:35:23,771 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:35:23,776 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:35:23,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:35:23,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:35:22" (1/3) ... [2022-11-16 11:35:23,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d5be4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:35:23, skipping insertion in model container [2022-11-16 11:35:23,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:35:23,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:23" (2/3) ... [2022-11-16 11:35:23,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d5be4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:35:23, skipping insertion in model container [2022-11-16 11:35:23,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:35:23,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:23" (3/3) ... [2022-11-16 11:35:23,782 INFO L332 chiAutomizerObserver]: Analyzing ICFG Velroyen-alloca.i [2022-11-16 11:35:23,901 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:35:23,902 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:35:23,902 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:35:23,902 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:35:23,902 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:35:23,902 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:35:23,919 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:35:23,919 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:35:23,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 11:35:23,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:35:23,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:35:23,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:35:23,977 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:35:23,977 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:35:23,977 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:35:23,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 11:35:23,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:35:23,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:35:23,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:35:23,996 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:35:23,996 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:35:24,006 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 6#L552-3true [2022-11-16 11:35:24,007 INFO L750 eck$LassoCheckResult]: Loop: 6#L552-3true call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 10#L551-1true assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 12#L552true assume !main_#t~short7#1; 2#L552-2true assume !main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call write~int(0, main_~x~0#1.base, main_~x~0#1.offset, 4); 6#L552-3true [2022-11-16 11:35:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:35:24,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:24,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212371033] [2022-11-16 11:35:24,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:24,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:24,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:24,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1144151, now seen corresponding path program 1 times [2022-11-16 11:35:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:24,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629906801] [2022-11-16 11:35:24,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:24,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:24,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:24,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:24,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:24,348 INFO L85 PathProgramCache]: Analyzing trace with hash 889571353, now seen corresponding path program 1 times [2022-11-16 11:35:24,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:24,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968445741] [2022-11-16 11:35:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:24,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:24,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:24,810 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:35:24,811 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:35:24,811 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:35:24,811 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:35:24,811 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:35:24,811 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:24,811 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:35:24,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:35:24,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: Velroyen-alloca.i_Iteration1_Lasso [2022-11-16 11:35:24,812 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:35:24,812 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:35:24,834 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 11:35:24,849 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 11:35:24,854 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 11:35:24,859 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 11:35:24,864 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 11:35:24,870 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 11:35:24,874 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 11:35:24,878 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 11:35:24,882 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 11:35:24,887 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 11:35:24,892 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 11:35:24,896 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 11:35:25,104 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 11:35:25,107 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 11:35:25,112 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 11:35:25,416 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:35:25,423 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:35:25,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:35:25,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:35:25,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:35:25,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:35:25,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,479 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:35:25,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:35:25,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:35:25,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:35:25,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:35:25,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:35:25,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:35:25,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:35:25,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:35:25,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:35:25,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:35:25,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:35:25,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:35:25,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:25,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:25,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,709 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:35:25,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:35:25,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:35:25,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:35:25,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,751 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:35:25,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:25,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:25,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,834 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:35:25,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:25,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:25,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,889 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:35:25,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:25,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:25,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:25,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:25,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:25,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:25,953 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:25,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:25,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:35:25,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:25,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:25,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:25,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:25,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:25,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:26,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:26,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:26,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:26,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:26,013 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:26,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:26,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:35:26,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:26,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:35:26,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:26,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:26,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:26,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:35:26,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:35:26,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:26,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:26,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:26,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:26,052 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:26,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:26,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:35:26,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:26,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:26,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:26,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:26,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:26,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:26,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:26,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:26,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:26,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:26,101 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:26,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:35:26,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:26,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:26,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:26,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:26,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:26,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:26,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:26,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:26,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:26,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:26,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:26,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:26,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:35:26,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:26,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:26,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:26,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:26,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:26,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:26,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:26,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:35:26,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:26,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:26,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:26,210 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:26,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:35:26,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:35:26,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:35:26,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:35:26,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:35:26,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:35:26,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:35:26,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:35:26,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:35:26,263 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-16 11:35:26,264 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-16 11:35:26,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:35:26,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:26,276 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:26,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:35:26,311 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:35:26,345 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-16 11:35:26,345 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:35:26,346 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 Supporting invariants [] [2022-11-16 11:35:26,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:26,369 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-11-16 11:35:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:26,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:35:26,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:26,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:35:26,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:35:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:26,649 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-16 11:35:26,651 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 11:35:26,774 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) Result 42 states and 56 transitions. Complement of second has 10 states. [2022-11-16 11:35:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 11:35:26,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 11:35:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2022-11-16 11:35:26,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-16 11:35:26,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:35:26,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-16 11:35:26,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:35:26,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-16 11:35:26,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:35:26,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2022-11-16 11:35:26,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:35:26,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 23 states and 35 transitions. [2022-11-16 11:35:26,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-16 11:35:26,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-16 11:35:26,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2022-11-16 11:35:26,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:35:26,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 35 transitions. [2022-11-16 11:35:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2022-11-16 11:35:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2022-11-16 11:35:26,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 states have internal predecessors, (29), 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 11:35:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2022-11-16 11:35:26,874 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 29 transitions. [2022-11-16 11:35:26,874 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2022-11-16 11:35:26,875 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:35:26,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2022-11-16 11:35:26,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:35:26,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:35:26,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:35:26,879 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 11:35:26,881 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-16 11:35:26,881 INFO L748 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 130#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 125#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 134#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 131#L552-2 [2022-11-16 11:35:26,882 INFO L750 eck$LassoCheckResult]: Loop: 131#L552-2 assume !main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call write~int(0, main_~x~0#1.base, main_~x~0#1.offset, 4); 122#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 123#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 128#L552 assume !main_#t~short7#1; 131#L552-2 [2022-11-16 11:35:26,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2022-11-16 11:35:26,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:26,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400689715] [2022-11-16 11:35:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:26,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:26,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:26,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:26,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:26,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1943531, now seen corresponding path program 2 times [2022-11-16 11:35:26,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:26,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212611439] [2022-11-16 11:35:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:27,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212611439] [2022-11-16 11:35:27,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212611439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:27,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:27,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:27,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194174252] [2022-11-16 11:35:27,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:27,147 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:35:27,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:27,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:35:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:35:27,165 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:35:27,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:35:27,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:27,218 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-11-16 11:35:27,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2022-11-16 11:35:27,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:35:27,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 27 transitions. [2022-11-16 11:35:27,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-16 11:35:27,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-16 11:35:27,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2022-11-16 11:35:27,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:35:27,226 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-16 11:35:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2022-11-16 11:35:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-16 11:35:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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 11:35:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2022-11-16 11:35:27,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-16 11:35:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:35:27,233 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-16 11:35:27,233 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:35:27,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2022-11-16 11:35:27,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 11:35:27,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:35:27,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:35:27,237 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 11:35:27,237 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-16 11:35:27,237 INFO L748 eck$LassoCheckResult]: Stem: 180#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 181#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 184#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 179#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 182#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 185#L552-2 [2022-11-16 11:35:27,238 INFO L750 eck$LassoCheckResult]: Loop: 185#L552-2 assume main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 186#L553 assume main_#t~mem8#1 < 0;havoc main_#t~mem8#1;call write~int(-5, main_~x~0#1.base, main_~x~0#1.offset, 4); 176#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 177#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 188#L552 assume !main_#t~short7#1; 185#L552-2 [2022-11-16 11:35:27,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:27,238 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 2 times [2022-11-16 11:35:27,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:27,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115278102] [2022-11-16 11:35:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:27,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:27,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash 48745192, now seen corresponding path program 1 times [2022-11-16 11:35:27,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:27,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214148297] [2022-11-16 11:35:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:27,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:27,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:27,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214148297] [2022-11-16 11:35:27,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214148297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:27,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:27,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:27,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70709958] [2022-11-16 11:35:27,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:27,452 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:35:27,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:35:27,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:35:27,453 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 11:35:27,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:27,504 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2022-11-16 11:35:27,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2022-11-16 11:35:27,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-16 11:35:27,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 36 transitions. [2022-11-16 11:35:27,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-16 11:35:27,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-16 11:35:27,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2022-11-16 11:35:27,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:35:27,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-11-16 11:35:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2022-11-16 11:35:27,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2022-11-16 11:35:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 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 11:35:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2022-11-16 11:35:27,510 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 28 transitions. [2022-11-16 11:35:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:35:27,512 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2022-11-16 11:35:27,512 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:35:27,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2022-11-16 11:35:27,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-16 11:35:27,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:35:27,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:35:27,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 11:35:27,514 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-16 11:35:27,514 INFO L748 eck$LassoCheckResult]: Stem: 232#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 233#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 238#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 244#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 242#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 228#L552-2 [2022-11-16 11:35:27,514 INFO L750 eck$LassoCheckResult]: Loop: 228#L552-2 assume main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 229#L553 assume main_#t~mem8#1 < 0;havoc main_#t~mem8#1;call write~int(-5, main_~x~0#1.base, main_~x~0#1.offset, 4); 234#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 235#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 237#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 228#L552-2 [2022-11-16 11:35:27,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:27,515 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 3 times [2022-11-16 11:35:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:27,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082723778] [2022-11-16 11:35:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:27,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:27,538 INFO L85 PathProgramCache]: Analyzing trace with hash 48745190, now seen corresponding path program 1 times [2022-11-16 11:35:27,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:27,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189890145] [2022-11-16 11:35:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:27,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 707540352, now seen corresponding path program 1 times [2022-11-16 11:35:27,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:27,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914695431] [2022-11-16 11:35:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:27,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:27,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:35:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:28,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:35:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:35:28,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:35:28 BoogieIcfgContainer [2022-11-16 11:35:28,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:35:28,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:35:28,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:35:28,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:35:28,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:23" (3/4) ... [2022-11-16 11:35:28,242 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:35:28,301 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:35:28,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:35:28,303 INFO L158 Benchmark]: Toolchain (without parser) took 5575.20ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 87.5MB in the beginning and 77.3MB in the end (delta: 10.2MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2022-11-16 11:35:28,304 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 54.3MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:35:28,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.67ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 93.1MB in the end (delta: -5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:35:28,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.81ms. Allocated memory is still 121.6MB. Free memory was 93.1MB in the beginning and 91.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:35:28,305 INFO L158 Benchmark]: Boogie Preprocessor took 46.69ms. Allocated memory is still 121.6MB. Free memory was 91.5MB in the beginning and 90.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:35:28,306 INFO L158 Benchmark]: RCFGBuilder took 429.90ms. Allocated memory is still 121.6MB. Free memory was 90.2MB in the beginning and 79.3MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:35:28,306 INFO L158 Benchmark]: BuchiAutomizer took 4464.78ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 79.3MB in the beginning and 78.4MB in the end (delta: 879.8kB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-16 11:35:28,307 INFO L158 Benchmark]: Witness Printer took 66.10ms. Allocated memory is still 161.5MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:35:28,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 54.3MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.67ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 93.1MB in the end (delta: -5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.81ms. Allocated memory is still 121.6MB. Free memory was 93.1MB in the beginning and 91.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.69ms. Allocated memory is still 121.6MB. Free memory was 91.5MB in the beginning and 90.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 429.90ms. Allocated memory is still 121.6MB. Free memory was 90.2MB in the beginning and 79.3MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4464.78ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 79.3MB in the beginning and 78.4MB in the end (delta: 879.8kB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 66.10ms. Allocated memory is still 161.5MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 29 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital99 mio100 ax118 hnf100 lsp79 ukn77 mio100 lsp41 div100 bol100 ite100 ukn100 eq153 hnf91 smp85 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 552]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() [L551] EXPR \read(*x) VAL [\read(*x)=-5, __builtin_alloca (sizeof(int))={2:0}, x={2:0}] [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 VAL [-5 <= *x && *x <= 35=1, \read(*x)=-5, \read(*x)=-5, __builtin_alloca (sizeof(int))={2:0}, x={2:0}] Loop: [L552] COND TRUE -5 <= *x && *x <= 35 [L553] EXPR \read(*x) [L553] COND TRUE *x < 0 [L554] *x = -5 [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 552]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() [L551] EXPR \read(*x) VAL [\read(*x)=-5, __builtin_alloca (sizeof(int))={2:0}, x={2:0}] [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 VAL [-5 <= *x && *x <= 35=1, \read(*x)=-5, \read(*x)=-5, __builtin_alloca (sizeof(int))={2:0}, x={2:0}] Loop: [L552] COND TRUE -5 <= *x && *x <= 35 [L553] EXPR \read(*x) [L553] COND TRUE *x < 0 [L554] *x = -5 [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:35:28,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ee97539-0655-410a-9bc7-14dc7c5d8234/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)