./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ --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 e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 --- 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-dbf71c6-m [2022-10-17 10:56:34,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:34,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:34,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:34,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:34,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:34,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:34,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:34,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:34,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:34,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:34,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:34,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:34,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:34,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:34,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:34,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:34,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:34,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:34,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:34,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:34,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:34,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:34,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:34,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:34,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:34,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:34,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:34,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:34,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:34,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:34,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:34,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:34,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:34,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:34,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:34,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:34,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:34,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:34,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:34,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:34,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:56:34,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:34,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:34,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:34,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:34,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:34,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:34,918 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:34,918 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:56:34,918 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:56:34,918 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:56:34,919 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:56:34,920 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:56:34,920 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:56:34,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:34,920 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:56:34,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:34,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:34,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:56:34,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:56:34,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:56:34,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:56:34,921 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:56:34,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:34,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:56:34,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:34,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:34,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:34,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:56:34,924 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:56:34,924 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_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 [2022-10-17 10:56:35,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:35,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:35,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:35,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:35,264 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:35,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2022-10-17 10:56:35,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/data/143cd14bc/8c910af68bfd4169ba8ffd1c961c4bb5/FLAG44698a794 [2022-10-17 10:56:35,874 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:35,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2022-10-17 10:56:35,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/data/143cd14bc/8c910af68bfd4169ba8ffd1c961c4bb5/FLAG44698a794 [2022-10-17 10:56:36,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/data/143cd14bc/8c910af68bfd4169ba8ffd1c961c4bb5 [2022-10-17 10:56:36,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:36,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:36,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:36,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:36,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:36,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d492d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36, skipping insertion in model container [2022-10-17 10:56:36,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:36,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:36,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:36,635 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:56:36,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:36,727 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:56:36,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36 WrapperNode [2022-10-17 10:56:36,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:36,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:36,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:56:36,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:56:36,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,793 INFO L138 Inliner]: procedures = 111, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-10-17 10:56:36,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:36,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:56:36,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:56:36,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:56:36,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:56:36,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:56:36,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:56:36,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:56:36,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:36,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:36,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:36,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:56:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:56:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:56:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:56:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:56:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:56:36,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:56:37,039 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:56:37,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:56:37,334 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:56:37,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:56:37,342 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:56:37,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:37 BoogieIcfgContainer [2022-10-17 10:56:37,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:56:37,348 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:56:37,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:56:37,354 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:56:37,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:56:37,355 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:56:36" (1/3) ... [2022-10-17 10:56:37,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@503e39a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:56:37, skipping insertion in model container [2022-10-17 10:56:37,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:56:37,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (2/3) ... [2022-10-17 10:56:37,357 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@503e39a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:56:37, skipping insertion in model container [2022-10-17 10:56:37,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:56:37,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:37" (3/3) ... [2022-10-17 10:56:37,358 INFO L332 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2022-10-17 10:56:37,437 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:56:37,437 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:56:37,437 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:56:37,438 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:56:37,438 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:56:37,438 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:56:37,438 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:56:37,438 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:56:37,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2022-10-17 10:56:37,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-10-17 10:56:37,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:37,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:37,477 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:56:37,478 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-10-17 10:56:37,478 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:56:37,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2022-10-17 10:56:37,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-10-17 10:56:37,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:37,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:37,483 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:56:37,483 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-10-17 10:56:37,491 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 2#L569true [2022-10-17 10:56:37,493 INFO L750 eck$LassoCheckResult]: Loop: 2#L569true assume !true; 12#L564true goto; 11#L567true call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 7#L564-1true assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 9#L566true assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 2#L569true [2022-10-17 10:56:37,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:37,499 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:56:37,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:37,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011677153] [2022-10-17 10:56:37,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:37,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:37,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:37,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2022-10-17 10:56:37,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:37,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462567452] [2022-10-17 10:56:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462567452] [2022-10-17 10:56:37,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462567452] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:37,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:37,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-17 10:56:37,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008611498] [2022-10-17 10:56:37,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:37,983 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:56:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:38,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:56:38,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:56:38,016 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 1 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) [2022-10-17 10:56:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:56:38,022 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-10-17 10:56:38,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2022-10-17 10:56:38,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-10-17 10:56:38,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2022-10-17 10:56:38,029 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-10-17 10:56:38,030 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-10-17 10:56:38,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-10-17 10:56:38,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:56:38,031 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:56:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-10-17 10:56:38,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:56:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2022-10-17 10:56:38,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-10-17 10:56:38,081 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:56:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:56:38,085 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:56:38,085 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:56:38,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-10-17 10:56:38,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-10-17 10:56:38,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:38,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:38,087 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:56:38,087 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:38,087 INFO L748 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 38#L569 [2022-10-17 10:56:38,088 INFO L750 eck$LassoCheckResult]: Loop: 38#L569 goto; 39#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 44#L557-1 assume !(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1; 43#L564 goto; 45#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 46#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 47#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 38#L569 [2022-10-17 10:56:38,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:38,089 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-10-17 10:56:38,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:38,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533043580] [2022-10-17 10:56:38,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:38,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:38,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:38,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2022-10-17 10:56:38,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:38,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993201301] [2022-10-17 10:56:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:38,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:38,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:38,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2022-10-17 10:56:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461354319] [2022-10-17 10:56:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:38,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:38,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:38,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:40,725 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:56:40,725 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:56:40,726 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:56:40,726 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:56:40,726 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:56:40,726 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:40,726 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:56:40,727 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:56:40,727 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2022-10-17 10:56:40,727 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:56:40,727 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:56:40,750 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,761 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,769 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,772 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,775 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,778 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:40,780 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,892 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,899 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,903 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,904 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,906 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,909 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,919 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:41,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:42,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:56:42,514 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:56:42,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:56:42,531 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 [2022-10-17 10:56:42,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:42,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:42,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:42,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:42,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:56:42,608 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 [2022-10-17 10:56:42,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:42,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:42,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:42,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:42,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:56:42,691 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 [2022-10-17 10:56:42,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:42,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:42,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:42,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:56:42,755 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 [2022-10-17 10:56:42,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:42,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:42,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:42,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,847 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 [2022-10-17 10:56:42,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,859 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:42,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:42,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:56:42,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:42,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,904 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,908 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 [2022-10-17 10:56:42,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:56:42,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:42,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:42,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:42,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-10-17 10:56:42,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:56:42,944 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 [2022-10-17 10:56:42,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:42,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:42,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:42,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:42,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:42,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-10-17 10:56:42,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:42,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:42,980 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:56:42,985 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 [2022-10-17 10:56:42,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:42,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:42,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:42,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,077 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,087 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 [2022-10-17 10:56:43,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:56:43,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,145 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:56:43,147 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 [2022-10-17 10:56:43,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,228 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,235 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 [2022-10-17 10:56:43,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:56:43,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,320 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,335 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 [2022-10-17 10:56:43,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:56:43,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,400 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,405 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 [2022-10-17 10:56:43,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:56:43,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-10-17 10:56:43,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,452 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:56:43,466 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 [2022-10-17 10:56:43,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,540 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,547 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 [2022-10-17 10:56:43,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:56:43,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,625 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:56:43,627 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 [2022-10-17 10:56:43,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:43,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:43,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,698 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:56:43,702 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 [2022-10-17 10:56:43,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:43,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:43,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:43,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:43,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:43,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:43,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:56:43,790 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-10-17 10:56:43,790 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-10-17 10:56:43,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:43,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:43,823 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:43,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:56:43,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:56:43,925 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-10-17 10:56:43,925 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:56:43,925 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0#1.base) ULTIMATE.start_f_~j~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0#1.base) ULTIMATE.start_f_~j~0#1.offset)_1 + 1 Supporting invariants [] [2022-10-17 10:56:43,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:44,213 INFO L156 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2022-10-17 10:56:44,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:44,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:56:44,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:44,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:56:44,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:44,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2022-10-17 10:56:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:44,397 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 [2022-10-17 10:56:44,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:56:44,442 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 27 transitions. Complement of second has 6 states. [2022-10-17 10:56:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:56:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:56:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-10-17 10:56:44,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2022-10-17 10:56:44,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:44,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2022-10-17 10:56:44,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:44,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2022-10-17 10:56:44,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:44,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2022-10-17 10:56:44,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:44,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2022-10-17 10:56:44,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:56:44,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:56:44,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2022-10-17 10:56:44,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:56:44,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-10-17 10:56:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2022-10-17 10:56:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-10-17 10:56:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2022-10-17 10:56:44,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2022-10-17 10:56:44,455 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-10-17 10:56:44,456 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-10-17 10:56:44,456 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:56:44,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2022-10-17 10:56:44,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:44,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:44,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:44,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:56:44,458 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:56:44,458 INFO L748 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 296#L569 goto; 283#L560 [2022-10-17 10:56:44,458 INFO L750 eck$LassoCheckResult]: Loop: 283#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 291#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 288#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 283#L560 [2022-10-17 10:56:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-10-17 10:56:44,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:44,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290262316] [2022-10-17 10:56:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:44,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:44,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:44,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2022-10-17 10:56:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:44,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497519752] [2022-10-17 10:56:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:44,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:44,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:44,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2022-10-17 10:56:44,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:44,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353775543] [2022-10-17 10:56:44,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:44,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:44,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:44,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:44,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:46,321 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:56:46,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:56:46,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:56:46,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:56:46,322 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:56:46,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:46,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:56:46,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:56:46,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2022-10-17 10:56:46,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:56:46,322 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:56:46,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:46,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:46,330 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:46,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:46,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:46,338 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:46,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,114 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,121 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,125 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,129 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:47,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:56:47,615 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:56:47,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,619 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,628 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 [2022-10-17 10:56:47,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:47,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:56:47,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:47,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:47,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:47,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,663 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:56:47,667 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 [2022-10-17 10:56:47,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:47,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:47,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:47,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:47,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,696 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:56:47,697 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 [2022-10-17 10:56:47,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:47,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:47,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-10-17 10:56:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,746 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:56:47,748 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 [2022-10-17 10:56:47,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:47,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:47,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:47,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,808 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,816 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 [2022-10-17 10:56:47,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:56:47,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:47,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:47,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:47,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:47,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,846 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:56:47,850 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 [2022-10-17 10:56:47,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:47,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:47,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:47,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-10-17 10:56:47,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,878 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:56:47,880 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 [2022-10-17 10:56:47,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:47,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:47,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-10-17 10:56:47,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,917 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:56:47,919 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 [2022-10-17 10:56:47,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:47,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:47,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:47,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:47,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:47,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:47,967 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:47,969 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 [2022-10-17 10:56:47,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:56:47,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:47,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:47,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:47,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:47,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:47,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:47,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:48,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:48,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,015 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:56:48,018 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 [2022-10-17 10:56:48,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:48,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:48,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:48,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:48,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:48,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:48,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:48,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:48,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,059 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:56:48,061 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 [2022-10-17 10:56:48,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:48,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:48,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:48,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:48,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:48,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:48,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:48,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-10-17 10:56:48,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,092 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:56:48,093 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 [2022-10-17 10:56:48,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:48,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:48,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:48,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:48,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:48,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:48,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:48,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:48,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,126 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-10-17 10:56:48,127 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 [2022-10-17 10:56:48,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:48,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:48,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:48,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:48,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:48,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:48,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:48,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-10-17 10:56:48,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,174 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-10-17 10:56:48,176 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 [2022-10-17 10:56:48,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:48,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:48,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:48,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:48,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:48,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:48,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:48,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:48,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,260 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,264 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 [2022-10-17 10:56:48,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-10-17 10:56:48,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:48,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:48,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:48,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:48,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:48,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:48,284 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:56:48,332 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-10-17 10:56:48,332 INFO L444 ModelExtractionUtils]: 6 out of 19 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-10-17 10:56:48,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:48,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:48,334 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:48,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-10-17 10:56:48,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:56:48,344 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-10-17 10:56:48,344 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:56:48,344 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_2, ULTIMATE.start_f_~k#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_2 + 1*ULTIMATE.start_f_~k#1 Supporting invariants [1*ULTIMATE.start_f_~k#1 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0#1.base) ULTIMATE.start_f_~k_ref~0#1.offset)_2 >= 0] [2022-10-17 10:56:48,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:48,536 INFO L156 tatePredicateManager]: 36 out of 37 supporting invariants were superfluous and have been removed [2022-10-17 10:56:48,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:48,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-17 10:56:48,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:48,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-10-17 10:56:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:56:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:56:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:56:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:56:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:56:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:56:48,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 26 [2022-10-17 10:56:48,689 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-10-17 10:56:48,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2022-10-17 10:56:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:48,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:56:48,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:48,783 INFO L356 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2022-10-17 10:56:48,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 42 [2022-10-17 10:56:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:48,843 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-10-17 10:56:48,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 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) [2022-10-17 10:56:48,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:48,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. 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 34 states and 43 transitions. Complement of second has 8 states. [2022-10-17 10:56:48,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:56:48,917 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) [2022-10-17 10:56:48,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2022-10-17 10:56:48,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2022-10-17 10:56:48,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:48,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2022-10-17 10:56:48,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:48,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2022-10-17 10:56:48,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:48,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2022-10-17 10:56:48,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:48,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2022-10-17 10:56:48,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:56:48,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:56:48,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2022-10-17 10:56:48,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:56:48,930 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-10-17 10:56:48,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2022-10-17 10:56:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2022-10-17 10:56:48,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 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) [2022-10-17 10:56:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2022-10-17 10:56:48,939 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-10-17 10:56:48,939 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-10-17 10:56:48,939 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:56:48,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2022-10-17 10:56:48,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:48,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:48,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:48,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:48,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:56:48,946 INFO L748 eck$LassoCheckResult]: Stem: 533#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 534#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 529#L569 goto; 530#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 545#L557-1 assume !(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1; 538#L564 goto; 541#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 542#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 543#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 547#L569 goto; 536#L560 [2022-10-17 10:56:48,946 INFO L750 eck$LassoCheckResult]: Loop: 536#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 544#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 535#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 536#L560 [2022-10-17 10:56:48,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:48,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2022-10-17 10:56:48,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:48,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903330442] [2022-10-17 10:56:48,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:48,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:49,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:49,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:49,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2022-10-17 10:56:49,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:49,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653969341] [2022-10-17 10:56:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:49,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:49,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:49,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2022-10-17 10:56:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795551508] [2022-10-17 10:56:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:50,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:50,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795551508] [2022-10-17 10:56:50,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795551508] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:56:50,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844384146] [2022-10-17 10:56:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:50,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:56:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:50,356 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:56:50,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-17 10:56:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:50,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-17 10:56:50,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:50,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-17 10:56:50,585 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-17 10:56:50,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2022-10-17 10:56:50,617 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 10:56:50,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2022-10-17 10:56:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:50,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:56:50,794 INFO L356 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-10-17 10:56:50,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 53 [2022-10-17 10:56:50,813 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 10:56:50,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 50 [2022-10-17 10:56:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:50,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844384146] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:56:50,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:56:50,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-10-17 10:56:50,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184506548] [2022-10-17 10:56:50,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:56:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-17 10:56:50,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2022-10-17 10:56:50,947 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 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) [2022-10-17 10:56:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:56:51,088 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-10-17 10:56:51,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2022-10-17 10:56:51,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:51,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2022-10-17 10:56:51,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:56:51,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:56:51,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2022-10-17 10:56:51,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:56:51,091 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-10-17 10:56:51,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2022-10-17 10:56:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2022-10-17 10:56:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-10-17 10:56:51,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2022-10-17 10:56:51,092 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-10-17 10:56:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:56:51,094 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-10-17 10:56:51,095 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:56:51,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2022-10-17 10:56:51,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:51,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:51,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:51,096 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:51,096 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:56:51,096 INFO L748 eck$LassoCheckResult]: Stem: 691#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 692#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 688#L569 goto; 689#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 698#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 695#L559 assume !(0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2));havoc f_#t~mem10#1; 696#L564 goto; 699#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 700#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 701#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 702#L569 goto; 694#L560 [2022-10-17 10:56:51,096 INFO L750 eck$LassoCheckResult]: Loop: 694#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 697#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 693#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 694#L560 [2022-10-17 10:56:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2022-10-17 10:56:51,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:51,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091508726] [2022-10-17 10:56:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:51,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:51,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:51,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091508726] [2022-10-17 10:56:51,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091508726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:51,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:51,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:56:51,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151755557] [2022-10-17 10:56:51,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:51,904 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:56:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:51,904 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2022-10-17 10:56:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:51,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269498102] [2022-10-17 10:56:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:51,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:51,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:52,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:56:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:56:52,017 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-10-17 10:56:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:56:52,068 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-10-17 10:56:52,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2022-10-17 10:56:52,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:52,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 23 transitions. [2022-10-17 10:56:52,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:56:52,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:56:52,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2022-10-17 10:56:52,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:56:52,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-10-17 10:56:52,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2022-10-17 10:56:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-10-17 10:56:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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) [2022-10-17 10:56:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-10-17 10:56:52,071 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-10-17 10:56:52,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:56:52,076 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-10-17 10:56:52,077 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:56:52,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2022-10-17 10:56:52,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:52,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:52,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:52,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:52,080 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:56:52,080 INFO L748 eck$LassoCheckResult]: Stem: 741#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 742#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 737#L569 goto; 738#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 752#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 745#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 740#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 747#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 754#L559 assume !(0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2));havoc f_#t~mem10#1; 751#L564 goto; 748#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 749#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 750#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 753#L569 goto; 744#L560 [2022-10-17 10:56:52,081 INFO L750 eck$LassoCheckResult]: Loop: 744#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 746#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 743#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 744#L560 [2022-10-17 10:56:52,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2022-10-17 10:56:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:52,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366965453] [2022-10-17 10:56:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:52,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:52,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:52,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:52,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:52,169 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2022-10-17 10:56:52,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:52,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398224263] [2022-10-17 10:56:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:52,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:52,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:52,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:52,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2022-10-17 10:56:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:52,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778834172] [2022-10-17 10:56:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:52,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:52,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:56:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:56:52,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:56:55,092 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:56:55,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:56:55,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:56:55,092 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:56:55,093 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:56:55,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:55,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:56:55,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:56:55,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2022-10-17 10:56:55,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:56:55,093 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:56:55,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:55,100 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:55,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:55,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:55,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:55,999 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,000 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,006 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,012 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,015 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,017 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,021 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,022 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,028 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:56:56,548 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:56:56,548 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:56:56,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,556 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,558 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 [2022-10-17 10:56:56,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-10-17 10:56:56,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:56:56,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:56:56,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:56:56,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,595 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-10-17 10:56:56,597 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 [2022-10-17 10:56:56,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-10-17 10:56:56,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,629 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,631 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 [2022-10-17 10:56:56,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-10-17 10:56:56,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,662 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-10-17 10:56:56,667 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 [2022-10-17 10:56:56,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,728 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,733 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 [2022-10-17 10:56:56,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-10-17 10:56:56,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,770 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-10-17 10:56:56,771 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 [2022-10-17 10:56:56,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,805 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-10-17 10:56:56,817 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 [2022-10-17 10:56:56,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,848 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-10-17 10:56:56,849 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 [2022-10-17 10:56:56,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-10-17 10:56:56,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,893 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-10-17 10:56:56,894 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 [2022-10-17 10:56:56,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-10-17 10:56:56,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,927 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-10-17 10:56:56,930 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 [2022-10-17 10:56:56,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-10-17 10:56:56,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,960 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-10-17 10:56:56,962 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 [2022-10-17 10:56:56,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:56,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:56,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:56,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:56,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:56,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:56,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:56:56,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:56,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:56,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:56,992 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:56,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-10-17 10:56:56,994 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 [2022-10-17 10:56:57,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:56:57,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:56:57,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:56:57,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:56:57,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:56:57,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:56:57,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:56:57,030 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-10-17 10:56:57,030 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-10-17 10:56:57,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:56:57,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:57,032 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-10-17 10:56:57,038 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:56:57,046 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-10-17 10:56:57,046 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:56:57,046 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0#1.base) ULTIMATE.start_f_~k_ref~0#1.offset)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_3 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0#1.base) ULTIMATE.start_f_~k_ref~0#1.offset)_3 Supporting invariants [] [2022-10-17 10:56:57,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:57,245 INFO L156 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2022-10-17 10:56:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:57,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:56:57,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:57,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:56:57,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:57,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-10-17 10:56:57,405 INFO L356 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2022-10-17 10:56:57,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 39 [2022-10-17 10:56:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:57,427 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 [2022-10-17 10:56:57,427 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-10-17 10:56:57,450 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 30 states and 35 transitions. Complement of second has 7 states. [2022-10-17 10:56:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:56:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-10-17 10:56:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-10-17 10:56:57,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2022-10-17 10:56:57,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:57,452 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:56:57,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:57,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:56:57,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:57,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:56:57,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:57,587 INFO L356 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2022-10-17 10:56:57,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 39 [2022-10-17 10:56:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:57,612 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-10-17 10:56:57,612 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-10-17 10:56:57,651 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 51 states and 59 transitions. Complement of second has 9 states. [2022-10-17 10:56:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-10-17 10:56:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-10-17 10:56:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2022-10-17 10:56:57,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2022-10-17 10:56:57,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:57,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2022-10-17 10:56:57,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:57,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2022-10-17 10:56:57,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:56:57,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2022-10-17 10:56:57,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:57,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2022-10-17 10:56:57,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:56:57,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:56:57,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2022-10-17 10:56:57,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:56:57,657 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-10-17 10:56:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2022-10-17 10:56:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-10-17 10:56:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 34 states have internal predecessors, (41), 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) [2022-10-17 10:56:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-10-17 10:56:57,666 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-10-17 10:56:57,666 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-10-17 10:56:57,666 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:56:57,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2022-10-17 10:56:57,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:56:57,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:56:57,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:56:57,669 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:57,669 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:56:57,670 INFO L748 eck$LassoCheckResult]: Stem: 1122#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 1118#L569 goto; 1119#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 1131#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1126#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 1127#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 1149#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1148#L559 assume !(0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2));havoc f_#t~mem10#1; 1147#L564 goto; 1145#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 1132#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1133#L566 assume 0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2);havoc f_#t~mem14#1; 1138#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 1140#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1137#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 1136#L569 goto; 1125#L560 [2022-10-17 10:56:57,670 INFO L750 eck$LassoCheckResult]: Loop: 1125#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 1130#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1124#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 1125#L560 [2022-10-17 10:56:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:57,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2022-10-17 10:56:57,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:57,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709000626] [2022-10-17 10:56:57,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:57,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:56:57,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:57,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709000626] [2022-10-17 10:56:57,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709000626] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:56:57,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811039808] [2022-10-17 10:56:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:57,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:56:57,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:57,972 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:56:58,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97bfbd27-d783-4ba8-b172-1ab2112ae97f/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-10-17 10:56:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:58,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-17 10:56:58,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:56:58,577 INFO L356 Elim1Store]: treesize reduction 324, result has 30.9 percent of original size [2022-10-17 10:56:58,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 442 treesize of output 633 [2022-10-17 10:56:58,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-17 10:56:58,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-17 10:56:58,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-17 10:56:58,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-17 10:57:03,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:57:03,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:57:03,129 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-17 10:57:03,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 142 [2022-10-17 10:57:03,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-10-17 10:57:03,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-10-17 10:57:03,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-17 10:57:03,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:57:04,292 INFO L356 Elim1Store]: treesize reduction 403, result has 32.3 percent of original size [2022-10-17 10:57:04,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 13012 treesize of output 10087 [2022-10-17 10:57:05,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5