./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/nec11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/nec11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 --- 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-2329fc7 [2022-12-13 17:26:40,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:26:40,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:26:40,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:26:40,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:26:40,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:26:40,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:26:40,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:26:40,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:26:40,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:26:40,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:26:40,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:26:40,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:26:40,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:26:40,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:26:40,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:26:40,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:26:40,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:26:40,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:26:40,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:26:40,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:26:40,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:26:40,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:26:40,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:26:40,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:26:40,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:26:40,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:26:40,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:26:40,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:26:40,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:26:40,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:26:40,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:26:40,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:26:40,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:26:40,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:26:40,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:26:40,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:26:40,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:26:40,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:26:40,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:26:40,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:26:40,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 17:26:40,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:26:40,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:26:40,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:26:40,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:26:40,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:26:40,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:26:40,195 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:26:40,195 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 17:26:40,195 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 17:26:40,196 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 17:26:40,196 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 17:26:40,196 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 17:26:40,196 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 17:26:40,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:26:40,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:26:40,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:26:40,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:26:40,198 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 17:26:40,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:26:40,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 17:26:40,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:26:40,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:26:40,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:26:40,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:26:40,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 17:26:40,199 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_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 [2022-12-13 17:26:40,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:26:40,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:26:40,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:26:40,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:26:40,410 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:26:40,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loops/nec11.c [2022-12-13 17:26:42,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:26:43,122 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:26:43,122 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/sv-benchmarks/c/loops/nec11.c [2022-12-13 17:26:43,126 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/data/0239f7266/7536213903c44d5aa33ac1c2979dbdd2/FLAG394932dab [2022-12-13 17:26:43,534 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/data/0239f7266/7536213903c44d5aa33ac1c2979dbdd2 [2022-12-13 17:26:43,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:26:43,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:26:43,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:26:43,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:26:43,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:26:43,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23448128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43, skipping insertion in model container [2022-12-13 17:26:43,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:26:43,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:26:43,694 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/sv-benchmarks/c/loops/nec11.c[317,330] [2022-12-13 17:26:43,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:26:43,714 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:26:43,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/sv-benchmarks/c/loops/nec11.c[317,330] [2022-12-13 17:26:43,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:26:43,741 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:26:43,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43 WrapperNode [2022-12-13 17:26:43,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:26:43,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:26:43,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:26:43,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:26:43,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,771 INFO L138 Inliner]: procedures = 13, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2022-12-13 17:26:43,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:26:43,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:26:43,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:26:43,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:26:43,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:26:43,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:26:43,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:26:43,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:26:43,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (1/1) ... [2022-12-13 17:26:43,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:43,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:43,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:43,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 17:26:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:26:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:26:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:26:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:26:43,915 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:26:43,917 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:26:43,992 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:26:43,996 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:26:43,996 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 17:26:43,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:26:43 BoogieIcfgContainer [2022-12-13 17:26:43,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:26:43,998 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 17:26:43,998 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 17:26:44,001 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 17:26:44,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:26:44,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 05:26:43" (1/3) ... [2022-12-13 17:26:44,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7f9228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:26:44, skipping insertion in model container [2022-12-13 17:26:44,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:26:44,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:26:43" (2/3) ... [2022-12-13 17:26:44,003 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7f9228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:26:44, skipping insertion in model container [2022-12-13 17:26:44,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:26:44,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:26:43" (3/3) ... [2022-12-13 17:26:44,004 INFO L332 chiAutomizerObserver]: Analyzing ICFG nec11.c [2022-12-13 17:26:44,045 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 17:26:44,045 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 17:26:44,045 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 17:26:44,046 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 17:26:44,046 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 17:26:44,046 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 17:26:44,046 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 17:26:44,046 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 17:26:44,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-12-13 17:26:44,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 17:26:44,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:26:44,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:26:44,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 17:26:44,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 17:26:44,063 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 17:26:44,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-12-13 17:26:44,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 17:26:44,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:26:44,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:26:44,065 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 17:26:44,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 17:26:44,070 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int(110, 2, 0, 1);call write~init~int(101, 2, 1, 1);call write~init~int(99, 2, 2, 1);call write~init~int(49, 2, 3, 1);call write~init~int(49, 2, 4, 1);call write~init~int(46, 2, 5, 1);call write~init~int(99, 2, 6, 1);call write~init~int(0, 2, 7, 1);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~a~0#1, main_~len~0#1, main_~c~0#1, main_~i~0#1;havoc main_~a~0#1;main_~len~0#1 := 0;main_~c~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~i~0#1; 10#L21-2true [2022-12-13 17:26:44,070 INFO L750 eck$LassoCheckResult]: Loop: 10#L21-2true assume !!(0 != main_~c~0#1 % 256); 9#L23true assume !(4 == main_~len~0#1); 6#L23-2true assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 10#L21-2true [2022-12-13 17:26:44,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 17:26:44,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:44,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353361638] [2022-12-13 17:26:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:44,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:44,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:44,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:44,168 INFO L85 PathProgramCache]: Analyzing trace with hash 40876, now seen corresponding path program 1 times [2022-12-13 17:26:44,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:44,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064772396] [2022-12-13 17:26:44,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:44,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:44,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:44,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times [2022-12-13 17:26:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:44,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404864837] [2022-12-13 17:26:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:44,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:44,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:44,498 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 17:26:44,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 17:26:44,499 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 17:26:44,499 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 17:26:44,499 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 17:26:44,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:44,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 17:26:44,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 17:26:44,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: nec11.c_Iteration1_Lasso [2022-12-13 17:26:44,500 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 17:26:44,500 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 17:26:44,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,609 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,628 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,651 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,653 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,657 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,660 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,670 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 17:26:44,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 17:26:44,902 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 17:26:44,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:44,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:44,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 17:26:44,907 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 [2022-12-13 17:26:44,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:44,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:44,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:44,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:44,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:44,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:44,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:44,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:26:44,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:44,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:44,933 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:44,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 17:26:44,935 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 [2022-12-13 17:26:44,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:44,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:44,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:44,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:44,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:44,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:44,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:44,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 17:26:44,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:44,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:44,957 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:44,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 17:26:44,959 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 [2022-12-13 17:26:44,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:44,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:44,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:44,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:44,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:44,972 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:44,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:44,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 17:26:44,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:44,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:44,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:44,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 17:26:44,983 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 [2022-12-13 17:26:44,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:44,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:44,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:44,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:44,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:44,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:44,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 17:26:45,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 17:26:45,006 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 [2022-12-13 17:26:45,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-12-13 17:26:45,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 17:26:45,029 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 [2022-12-13 17:26:45,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 17:26:45,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 17:26:45,051 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 [2022-12-13 17:26:45,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 17:26:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,072 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 17:26:45,074 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 [2022-12-13 17:26:45,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 17:26:45,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,093 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 17:26:45,095 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 [2022-12-13 17:26:45,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 17:26:45,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,115 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 17:26:45,117 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 [2022-12-13 17:26:45,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 17:26:45,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 17:26:45,141 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 [2022-12-13 17:26:45,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 17:26:45,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 17:26:45,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 17:26:45,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 17:26:45,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,159 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 17:26:45,161 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 [2022-12-13 17:26:45,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 17:26:45,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,181 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 17:26:45,183 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 [2022-12-13 17:26:45,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 17:26:45,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,203 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 17:26:45,206 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 [2022-12-13 17:26:45,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 17:26:45,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,225 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 17:26:45,227 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 [2022-12-13 17:26:45,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 17:26:45,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,247 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 17:26:45,249 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 [2022-12-13 17:26:45,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 17:26:45,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,268 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 17:26:45,270 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 [2022-12-13 17:26:45,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-12-13 17:26:45,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,289 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 17:26:45,291 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 [2022-12-13 17:26:45,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 17:26:45,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,311 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 17:26:45,313 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 [2022-12-13 17:26:45,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,327 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 17:26:45,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,334 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 17:26:45,336 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 [2022-12-13 17:26:45,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 17:26:45,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 17:26:45,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 17:26:45,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 17:26:45,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,353 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 17:26:45,355 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 [2022-12-13 17:26:45,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 17:26:45,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 17:26:45,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 17:26:45,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 17:26:45,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,371 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 17:26:45,374 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 [2022-12-13 17:26:45,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 17:26:45,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,392 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 17:26:45,394 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 [2022-12-13 17:26:45,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 17:26:45,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 17:26:45,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 17:26:45,406 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 17:26:45,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,410 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 17:26:45,412 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 [2022-12-13 17:26:45,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 17:26:45,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 17:26:45,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 17:26:45,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,432 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 17:26:45,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-12-13 17:26:45,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 17:26:45,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 17:26:45,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 17:26:45,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 17:26:45,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 17:26:45,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-12-13 17:26:45,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,450 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 17:26:45,452 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 [2022-12-13 17:26:45,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 17:26:45,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 17:26:45,462 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 17:26:45,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 17:26:45,469 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-12-13 17:26:45,470 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-12-13 17:26:45,488 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 17:26:45,512 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-12-13 17:26:45,512 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-12-13 17:26:45,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:26:45,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,532 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 17:26:45,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 17:26:45,547 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-12-13 17:26:45,547 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 17:26:45,548 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~len~0#1) = -2*ULTIMATE.start_main_~len~0#1 + 9 Supporting invariants [-1*ULTIMATE.start_main_~len~0#1 + 4 >= 0] [2022-12-13 17:26:45,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 17:26:45,558 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2022-12-13 17:26:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:26:45,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:26:45,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:26:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:26:45,614 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:26:45,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:26:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:26:45,674 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 17:26:45,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:26:45,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 17:26:45,735 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 49 transitions. Complement of second has 8 states. [2022-12-13 17:26:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 17:26:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:26:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-12-13 17:26:45,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 3 letters. [2022-12-13 17:26:45,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 17:26:45,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 17:26:45,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 17:26:45,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 6 letters. [2022-12-13 17:26:45,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 17:26:45,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2022-12-13 17:26:45,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 17:26:45,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 10 states and 13 transitions. [2022-12-13 17:26:45,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-12-13 17:26:45,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-12-13 17:26:45,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-12-13 17:26:45,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 17:26:45,753 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-12-13 17:26:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-12-13 17:26:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-13 17:26:45,774 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) [2022-12-13 17:26:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-12-13 17:26:45,775 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-12-13 17:26:45,775 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-12-13 17:26:45,775 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 17:26:45,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-12-13 17:26:45,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 17:26:45,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:26:45,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:26:45,776 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 17:26:45,776 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 17:26:45,776 INFO L748 eck$LassoCheckResult]: Stem: 112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int(110, 2, 0, 1);call write~init~int(101, 2, 1, 1);call write~init~int(99, 2, 2, 1);call write~init~int(49, 2, 3, 1);call write~init~int(49, 2, 4, 1);call write~init~int(46, 2, 5, 1);call write~init~int(99, 2, 6, 1);call write~init~int(0, 2, 7, 1);call #Ultimate.allocInit(12, 3); 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~a~0#1, main_~len~0#1, main_~c~0#1, main_~i~0#1;havoc main_~a~0#1;main_~len~0#1 := 0;main_~c~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~i~0#1; 114#L21-2 assume !!(0 != main_~c~0#1 % 256); 110#L23 assume 4 == main_~len~0#1;main_~len~0#1 := 0; 106#L23-2 [2022-12-13 17:26:45,776 INFO L750 eck$LassoCheckResult]: Loop: 106#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 107#L21-2 assume !!(0 != main_~c~0#1 % 256); 115#L23 assume !(4 == main_~len~0#1); 106#L23-2 [2022-12-13 17:26:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-12-13 17:26:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372252969] [2022-12-13 17:26:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:45,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:26:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:26:45,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:26:45,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372252969] [2022-12-13 17:26:45,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372252969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:26:45,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:26:45,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:26:45,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537310106] [2022-12-13 17:26:45,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:26:45,825 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 17:26:45,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash 47446, now seen corresponding path program 2 times [2022-12-13 17:26:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:45,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369083300] [2022-12-13 17:26:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:45,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:45,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:45,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:26:45,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:26:45,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:26:45,867 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:26:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:26:45,874 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-12-13 17:26:45,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2022-12-13 17:26:45,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 17:26:45,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 15 transitions. [2022-12-13 17:26:45,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-12-13 17:26:45,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-12-13 17:26:45,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-12-13 17:26:45,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 17:26:45,876 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-13 17:26:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-12-13 17:26:45,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2022-12-13 17:26:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 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) [2022-12-13 17:26:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-12-13 17:26:45,877 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-12-13 17:26:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:26:45,877 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-12-13 17:26:45,877 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 17:26:45,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-12-13 17:26:45,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 17:26:45,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:26:45,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:26:45,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-12-13 17:26:45,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 17:26:45,878 INFO L748 eck$LassoCheckResult]: Stem: 142#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int(110, 2, 0, 1);call write~init~int(101, 2, 1, 1);call write~init~int(99, 2, 2, 1);call write~init~int(49, 2, 3, 1);call write~init~int(49, 2, 4, 1);call write~init~int(46, 2, 5, 1);call write~init~int(99, 2, 6, 1);call write~init~int(0, 2, 7, 1);call #Ultimate.allocInit(12, 3); 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~a~0#1, main_~len~0#1, main_~c~0#1, main_~i~0#1;havoc main_~a~0#1;main_~len~0#1 := 0;main_~c~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~i~0#1; 144#L21-2 assume !!(0 != main_~c~0#1 % 256); 141#L23 assume !(4 == main_~len~0#1); 138#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 139#L21-2 assume !!(0 != main_~c~0#1 % 256); 140#L23 assume 4 == main_~len~0#1;main_~len~0#1 := 0; 136#L23-2 [2022-12-13 17:26:45,878 INFO L750 eck$LassoCheckResult]: Loop: 136#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 137#L21-2 assume !!(0 != main_~c~0#1 % 256); 145#L23 assume !(4 == main_~len~0#1); 136#L23-2 [2022-12-13 17:26:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1810721677, now seen corresponding path program 1 times [2022-12-13 17:26:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:45,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240102851] [2022-12-13 17:26:45,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:26:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:26:45,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:26:45,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240102851] [2022-12-13 17:26:45,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240102851] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:26:45,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752122786] [2022-12-13 17:26:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:45,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:26:45,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:26:45,919 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:26:45,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-12-13 17:26:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:26:45,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:26:45,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:26:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:26:45,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:26:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:26:45,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752122786] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:26:45,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:26:45,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 17:26:45,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219024098] [2022-12-13 17:26:45,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:26:45,995 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 17:26:45,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:45,995 INFO L85 PathProgramCache]: Analyzing trace with hash 47446, now seen corresponding path program 3 times [2022-12-13 17:26:45,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:45,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201921950] [2022-12-13 17:26:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:45,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:46,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:26:46,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:26:46,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:26:46,031 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:26:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:26:46,050 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-12-13 17:26:46,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 36 transitions. [2022-12-13 17:26:46,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-12-13 17:26:46,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 33 transitions. [2022-12-13 17:26:46,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-12-13 17:26:46,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-12-13 17:26:46,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 33 transitions. [2022-12-13 17:26:46,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 17:26:46,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-12-13 17:26:46,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 33 transitions. [2022-12-13 17:26:46,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-12-13 17:26:46,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 27 states have internal predecessors, (30), 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) [2022-12-13 17:26:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-12-13 17:26:46,055 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-12-13 17:26:46,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:26:46,056 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-12-13 17:26:46,056 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 17:26:46,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 30 transitions. [2022-12-13 17:26:46,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-12-13 17:26:46,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:26:46,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:26:46,057 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 1, 1, 1] [2022-12-13 17:26:46,057 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2022-12-13 17:26:46,058 INFO L748 eck$LassoCheckResult]: Stem: 230#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int(110, 2, 0, 1);call write~init~int(101, 2, 1, 1);call write~init~int(99, 2, 2, 1);call write~init~int(49, 2, 3, 1);call write~init~int(49, 2, 4, 1);call write~init~int(46, 2, 5, 1);call write~init~int(99, 2, 6, 1);call write~init~int(0, 2, 7, 1);call #Ultimate.allocInit(12, 3); 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~a~0#1, main_~len~0#1, main_~c~0#1, main_~i~0#1;havoc main_~a~0#1;main_~len~0#1 := 0;main_~c~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~i~0#1; 237#L21-2 assume !!(0 != main_~c~0#1 % 256); 238#L23 assume !(4 == main_~len~0#1); 245#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 236#L21-2 assume !!(0 != main_~c~0#1 % 256); 234#L23 assume !(4 == main_~len~0#1); 228#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 229#L21-2 assume !!(0 != main_~c~0#1 % 256); 244#L23 assume !(4 == main_~len~0#1); 243#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 242#L21-2 assume !!(0 != main_~c~0#1 % 256); 240#L23 assume !(4 == main_~len~0#1); 241#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 239#L21-2 assume !!(0 != main_~c~0#1 % 256); 232#L23 assume 4 == main_~len~0#1;main_~len~0#1 := 0; 233#L23-2 [2022-12-13 17:26:46,058 INFO L750 eck$LassoCheckResult]: Loop: 233#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 253#L21-2 assume !!(0 != main_~c~0#1 % 256); 246#L23 assume !(4 == main_~len~0#1); 226#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 227#L21-2 assume !!(0 != main_~c~0#1 % 256); 235#L23 assume !(4 == main_~len~0#1); 252#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 251#L21-2 assume !!(0 != main_~c~0#1 % 256); 250#L23 assume !(4 == main_~len~0#1); 248#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 249#L21-2 assume !!(0 != main_~c~0#1 % 256); 247#L23 assume 4 == main_~len~0#1;main_~len~0#1 := 0; 233#L23-2 [2022-12-13 17:26:46,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 658202022, now seen corresponding path program 2 times [2022-12-13 17:26:46,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:46,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629113093] [2022-12-13 17:26:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:46,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1957011391, now seen corresponding path program 1 times [2022-12-13 17:26:46,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:46,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874901610] [2022-12-13 17:26:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:46,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:26:46,100 INFO L85 PathProgramCache]: Analyzing trace with hash -282022428, now seen corresponding path program 3 times [2022-12-13 17:26:46,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:26:46,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664665667] [2022-12-13 17:26:46,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:26:46,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:26:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:26:46,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-12-13 17:26:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:26:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:26:46,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 05:26:46 BoogieIcfgContainer [2022-12-13 17:26:46,578 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 17:26:46,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:26:46,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:26:46,579 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:26:46,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:26:43" (3/4) ... [2022-12-13 17:26:46,581 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 17:26:46,618 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:26:46,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:26:46,619 INFO L158 Benchmark]: Toolchain (without parser) took 3081.01ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 85.8MB in the beginning and 95.7MB in the end (delta: -9.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-12-13 17:26:46,619 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:26:46,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.48ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 75.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 17:26:46,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 119.5MB. Free memory was 75.7MB in the beginning and 74.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:26:46,620 INFO L158 Benchmark]: Boogie Preprocessor took 17.77ms. Allocated memory is still 119.5MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:26:46,620 INFO L158 Benchmark]: RCFGBuilder took 206.75ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 63.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 17:26:46,620 INFO L158 Benchmark]: BuchiAutomizer took 2579.72ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 63.9MB in the beginning and 97.8MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:26:46,621 INFO L158 Benchmark]: Witness Printer took 39.85ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:26:46,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.48ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 75.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 119.5MB. Free memory was 75.7MB in the beginning and 74.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.77ms. Allocated memory is still 119.5MB. Free memory was 74.4MB in the beginning and 73.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 206.75ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 63.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2579.72ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 63.9MB in the beginning and 97.8MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.85ms. Allocated memory is still 144.7MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function 9 + -2 * len and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 28 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:5. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 17 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital145 mio100 ax100 hnf100 lsp49 ukn44 mio100 lsp56 div305 bol100 ite100 ukn100 eq154 hnf96 smp56 dnf169 smp100 tf100 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 97ms VariablesStem: 1 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 21]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int a[5]; [L16] int len=0; [L17] _Bool c=__VERIFIER_nondet_bool(); [L18] int i; VAL [len=0] [L21] COND TRUE \read(c) VAL [c=1, len=0] [L23] COND FALSE !(len==4) VAL [c=1, len=0] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=1] [L21] COND TRUE \read(c) VAL [c=1, len=1] [L23] COND FALSE !(len==4) VAL [c=1, len=1] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=2] [L21] COND TRUE \read(c) VAL [c=1, len=2] [L23] COND FALSE !(len==4) VAL [c=1, len=2] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=3] [L21] COND TRUE \read(c) VAL [c=1, len=3] [L23] COND FALSE !(len==4) VAL [c=1, len=3] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=4] [L21] COND TRUE \read(c) VAL [c=1, len=4] [L23] COND TRUE len==4 [L24] len =0 VAL [c=1, len=0] Loop: [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND FALSE !(len==4) [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND FALSE !(len==4) [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND FALSE !(len==4) [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND TRUE len==4 [L24] len =0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int a[5]; [L16] int len=0; [L17] _Bool c=__VERIFIER_nondet_bool(); [L18] int i; VAL [len=0] [L21] COND TRUE \read(c) VAL [c=1, len=0] [L23] COND FALSE !(len==4) VAL [c=1, len=0] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=1] [L21] COND TRUE \read(c) VAL [c=1, len=1] [L23] COND FALSE !(len==4) VAL [c=1, len=1] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=2] [L21] COND TRUE \read(c) VAL [c=1, len=2] [L23] COND FALSE !(len==4) VAL [c=1, len=2] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=3] [L21] COND TRUE \read(c) VAL [c=1, len=3] [L23] COND FALSE !(len==4) VAL [c=1, len=3] [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ VAL [c=1, len=4] [L21] COND TRUE \read(c) VAL [c=1, len=4] [L23] COND TRUE len==4 [L24] len =0 VAL [c=1, len=0] Loop: [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND FALSE !(len==4) [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND FALSE !(len==4) [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND FALSE !(len==4) [L26] EXPR a[len] [L26] a[len]=0 [L28] len++ [L21] COND TRUE \read(c) [L23] COND TRUE len==4 [L24] len =0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 17:26:46,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-12-13 17:26:46,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc063bd2-cd50-423a-a395-6f1dc336f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)