./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/nec11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 11:49:09,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:49:09,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:49:09,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:49:09,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:49:09,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:49:09,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:49:09,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:49:09,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:49:09,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:49:09,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:49:09,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:49:09,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:49:09,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:49:09,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:49:09,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:49:09,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:49:09,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:49:09,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:49:09,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:49:09,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:49:09,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:49:09,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:49:09,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:49:09,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:49:09,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:49:09,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:49:09,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:49:09,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:49:09,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:49:09,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:49:09,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:49:09,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:49:09,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:49:09,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:49:09,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:49:09,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:49:09,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:49:09,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:49:09,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:49:09,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:49:09,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:49:09,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:49:09,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:49:09,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:49:09,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:49:09,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:49:09,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:49:09,532 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:49:09,533 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:49:09,533 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:49:09,533 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:49:09,534 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:49:09,534 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:49:09,534 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:49:09,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:49:09,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:49:09,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:49:09,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:49:09,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:49:09,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:49:09,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:49:09,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:49:09,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:49:09,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:49:09,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:49:09,537 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:49:09,537 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:49:09,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:49:09,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:49:09,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:49:09,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:49:09,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:49:09,540 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:49:09,540 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_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 [2022-11-20 11:49:09,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:49:09,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:49:09,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:49:09,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:49:09,926 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:49:09,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loops/nec11.c [2022-11-20 11:49:12,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:49:13,179 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:49:13,180 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/sv-benchmarks/c/loops/nec11.c [2022-11-20 11:49:13,186 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/data/fa1fae9a4/0856e66e651144f89669378061f74e16/FLAG8cc0c40f4 [2022-11-20 11:49:13,206 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/data/fa1fae9a4/0856e66e651144f89669378061f74e16 [2022-11-20 11:49:13,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:49:13,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:49:13,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:49:13,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:49:13,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:49:13,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d1c43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13, skipping insertion in model container [2022-11-20 11:49:13,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:49:13,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:49:13,480 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_53cb0930-c510-4879-85ca-0ce3eb9005bb/sv-benchmarks/c/loops/nec11.c[317,330] [2022-11-20 11:49:13,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:49:13,513 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:49:13,530 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_53cb0930-c510-4879-85ca-0ce3eb9005bb/sv-benchmarks/c/loops/nec11.c[317,330] [2022-11-20 11:49:13,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:49:13,546 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:49:13,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13 WrapperNode [2022-11-20 11:49:13,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:49:13,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:49:13,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:49:13,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:49:13,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,577 INFO L138 Inliner]: procedures = 13, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2022-11-20 11:49:13,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:49:13,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:49:13,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:49:13,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:49:13,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,595 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:49:13,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:49:13,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:49:13,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:49:13,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (1/1) ... [2022-11-20 11:49:13,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:13,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:13,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:49:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:49:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:49:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:49:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:49:13,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:49:13,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:49:13,934 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:49:13,954 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:49:13,955 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:49:13,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:13 BoogieIcfgContainer [2022-11-20 11:49:13,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:49:13,958 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:49:13,958 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:49:13,962 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:49:13,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:49:13,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:49:13" (1/3) ... [2022-11-20 11:49:13,964 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dce1f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:49:13, skipping insertion in model container [2022-11-20 11:49:13,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:49:13,964 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:13" (2/3) ... [2022-11-20 11:49:13,965 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dce1f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:49:13, skipping insertion in model container [2022-11-20 11:49:13,965 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:49:13,965 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:13" (3/3) ... [2022-11-20 11:49:13,966 INFO L332 chiAutomizerObserver]: Analyzing ICFG nec11.c [2022-11-20 11:49:14,032 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:49:14,032 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:49:14,032 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:49:14,032 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:49:14,032 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:49:14,033 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:49:14,033 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:49:14,033 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:49:14,053 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) [2022-11-20 11:49:14,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:49:14,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:49:14,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:49:14,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:49:14,093 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:49:14,093 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:49:14,093 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) [2022-11-20 11:49:14,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:49:14,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:49:14,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:49:14,099 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:49:14,099 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:49:14,107 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;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; 9#L21-2true [2022-11-20 11:49:14,118 INFO L750 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(0 != main_~c~0#1 % 256); 8#L23true assume !(4 == main_~len~0#1); 7#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; 9#L21-2true [2022-11-20 11:49:14,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 11:49:14,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:14,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795290914] [2022-11-20 11:49:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:14,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:14,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:14,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:14,339 INFO L85 PathProgramCache]: Analyzing trace with hash 40876, now seen corresponding path program 1 times [2022-11-20 11:49:14,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:14,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081057537] [2022-11-20 11:49:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:14,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:14,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:14,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:14,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times [2022-11-20 11:49:14,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:14,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127833315] [2022-11-20 11:49:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:14,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:14,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:14,868 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:49:14,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:49:14,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:49:14,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:49:14,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:49:14,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:14,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:49:14,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:49:14,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: nec11.c_Iteration1_Lasso [2022-11-20 11:49:14,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:49:14,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:49:14,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,092 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,096 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,170 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:49:15,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:49:15,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:49:15,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:15,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:15,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:15,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:15,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 11:49:15,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:15,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:15,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:15,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:15,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:15,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:15,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:15,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:15,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:15,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:15,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:15,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:15,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 11:49:15,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:15,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:15,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:15,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:15,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:15,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:15,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:15,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:15,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:15,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:15,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:15,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:15,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 11:49:15,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:15,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:15,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:15,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:15,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:15,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:15,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:15,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:15,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:15,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:15,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:15,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:15,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 11:49:15,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:15,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:15,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:15,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:15,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:15,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:15,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:15,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:15,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:15,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:15,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:15,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:15,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:15,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:15,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:15,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:15,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 11:49:15,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:15,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:15,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:15,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:15,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:15,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:15,975 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:15,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:15,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 11:49:15,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:15,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,004 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,004 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,022 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 11:49:16,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,062 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 11:49:16,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,107 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 11:49:16,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,156 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 11:49:16,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,202 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 11:49:16,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:49:16,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:49:16,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:49:16,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,239 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 11:49:16,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 11:49:16,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,340 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 11:49:16,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,384 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,394 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 [2022-11-20 11:49:16,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 11:49:16,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,441 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 11:49:16,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,496 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 11:49:16,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,532 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 11:49:16,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,576 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 11:49:16,626 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,636 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 11:49:16,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:49:16,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:49:16,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:49:16,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,670 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:49:16,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:49:16,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:49:16,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 11:49:16,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,707 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 11:49:16,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,768 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 11:49:16,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:49:16,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:49:16,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:49:16,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,803 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:49:16,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:49:16,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 11:49:16,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,858 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:49:16,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:49:16,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 11:49:16,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:49:16,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:49:16,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:49:16,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:16,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:16,881 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:16,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 11:49:16,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:49:16,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:49:16,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:49:16,893 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 11:49:16,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:49:16,904 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-20 11:49:16,905 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-20 11:49:16,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:49:16,989 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-11-20 11:49:16,989 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-20 11:49:16,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:49:16,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:17,033 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:17,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:49:17,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 11:49:17,069 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-20 11:49:17,069 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:49:17,070 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] [2022-11-20 11:49:17,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:17,084 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2022-11-20 11:49:17,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:17,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:49:17,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:17,189 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:49:17,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:17,274 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 [2022-11-20 11:49:17,277 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) [2022-11-20 11:49:17,369 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. [2022-11-20 11:49:17,386 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 [2022-11-20 11:49:17,391 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) [2022-11-20 11:49:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-20 11:49:17,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-20 11:49:17,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:49:17,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-20 11:49:17,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:49:17,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-20 11:49:17,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:49:17,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2022-11-20 11:49:17,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:49:17,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 10 states and 13 transitions. [2022-11-20 11:49:17,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-20 11:49:17,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-20 11:49:17,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-11-20 11:49:17,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:49:17,411 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-11-20 11:49:17,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-11-20 11:49:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-20 11:49:17,457 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) [2022-11-20 11:49:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-11-20 11:49:17,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-11-20 11:49:17,460 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-11-20 11:49:17,460 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:49:17,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-11-20 11:49:17,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:49:17,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:49:17,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:49:17,465 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 11:49:17,465 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:49:17,466 INFO L748 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(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); 107#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); 112#L23 assume 4 == main_~len~0#1;main_~len~0#1 := 0; 108#L23-2 [2022-11-20 11:49:17,466 INFO L750 eck$LassoCheckResult]: Loop: 108#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; 109#L21-2 assume !!(0 != main_~c~0#1 % 256); 115#L23 assume !(4 == main_~len~0#1); 108#L23-2 [2022-11-20 11:49:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:17,472 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-20 11:49:17,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:17,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299324613] [2022-11-20 11:49:17,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:17,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:17,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:17,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299324613] [2022-11-20 11:49:17,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299324613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:17,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:17,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:49:17,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343506888] [2022-11-20 11:49:17,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:17,597 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 11:49:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:17,597 INFO L85 PathProgramCache]: Analyzing trace with hash 47446, now seen corresponding path program 2 times [2022-11-20 11:49:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:17,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284220742] [2022-11-20 11:49:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:17,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:17,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:17,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:17,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:17,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:49:17,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:17,688 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) [2022-11-20 11:49:17,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:17,707 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-11-20 11:49:17,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2022-11-20 11:49:17,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:49:17,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 15 transitions. [2022-11-20 11:49:17,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 11:49:17,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 11:49:17,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-11-20 11:49:17,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:49:17,710 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-20 11:49:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-11-20 11:49:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2022-11-20 11:49:17,711 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) [2022-11-20 11:49:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-20 11:49:17,712 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-20 11:49:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:49:17,713 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-20 11:49:17,713 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 11:49:17,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-11-20 11:49:17,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:49:17,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:49:17,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:49:17,715 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-11-20 11:49:17,715 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:49:17,715 INFO L748 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int(110, 2, 0, 1);call write~init~int(101, 2, 1, 1);call write~init~int(99, 2, 2, 1);call write~init~int(49, 2, 3, 1);call write~init~int(49, 2, 4, 1);call write~init~int(46, 2, 5, 1);call write~init~int(99, 2, 6, 1);call write~init~int(0, 2, 7, 1);call #Ultimate.allocInit(12, 3); 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~a~0#1, main_~len~0#1, main_~c~0#1, main_~i~0#1;havoc main_~a~0#1;main_~len~0#1 := 0;main_~c~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~i~0#1; 145#L21-2 assume !!(0 != main_~c~0#1 % 256); 143#L23 assume !(4 == main_~len~0#1); 140#L23-2 assume 0 <= main_~len~0#1 % 4294967296 && main_~len~0#1 % 4294967296 < 5;main_~a~0#1 := main_~a~0#1[main_~len~0#1 := 0];main_#t~post5#1 := main_~len~0#1;main_~len~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 141#L21-2 assume !!(0 != main_~c~0#1 % 256); 142#L23 assume 4 == main_~len~0#1;main_~len~0#1 := 0; 138#L23-2 [2022-11-20 11:49:17,715 INFO L750 eck$LassoCheckResult]: Loop: 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); 144#L23 assume !(4 == main_~len~0#1); 138#L23-2 [2022-11-20 11:49:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:17,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1810721677, now seen corresponding path program 1 times [2022-11-20 11:49:17,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:17,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84491426] [2022-11-20 11:49:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:17,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:17,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:17,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84491426] [2022-11-20 11:49:17,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84491426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:49:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443002355] [2022-11-20 11:49:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:49:17,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:17,809 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:49:17,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-20 11:49:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:17,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:49:17,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:17,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:17,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443002355] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:49:17,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:49:17,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-20 11:49:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126384535] [2022-11-20 11:49:17,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:49:17,924 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 11:49:17,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:17,924 INFO L85 PathProgramCache]: Analyzing trace with hash 47446, now seen corresponding path program 3 times [2022-11-20 11:49:17,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:17,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919967575] [2022-11-20 11:49:17,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:17,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:17,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:17,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:17,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:49:17,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:17,976 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) [2022-11-20 11:49:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:18,003 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-11-20 11:49:18,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 36 transitions. [2022-11-20 11:49:18,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-20 11:49:18,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 33 transitions. [2022-11-20 11:49:18,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-20 11:49:18,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-20 11:49:18,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 33 transitions. [2022-11-20 11:49:18,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:49:18,006 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-20 11:49:18,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 33 transitions. [2022-11-20 11:49:18,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-11-20 11:49:18,008 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) [2022-11-20 11:49:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-20 11:49:18,009 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-20 11:49:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:49:18,011 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-20 11:49:18,011 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 11:49:18,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 30 transitions. [2022-11-20 11:49:18,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-20 11:49:18,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:49:18,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:49:18,013 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 1, 1, 1] [2022-11-20 11:49:18,013 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2022-11-20 11:49:18,013 INFO L748 eck$LassoCheckResult]: Stem: 226#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(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); 227#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); 234#L23 assume !(4 == main_~len~0#1); 230#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; 231#L21-2 assume !!(0 != main_~c~0#1 % 256); 236#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; 244#L21-2 assume !!(0 != main_~c~0#1 % 256); 243#L23 assume !(4 == main_~len~0#1); 242#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; 241#L21-2 assume !!(0 != main_~c~0#1 % 256); 239#L23 assume !(4 == main_~len~0#1); 240#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; 238#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 [2022-11-20 11:49:18,013 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); 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); 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 [2022-11-20 11:49:18,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 658202022, now seen corresponding path program 2 times [2022-11-20 11:49:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:18,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718150989] [2022-11-20 11:49:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:18,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1957011391, now seen corresponding path program 1 times [2022-11-20 11:49:18,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640466723] [2022-11-20 11:49:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:18,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:18,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:18,076 INFO L85 PathProgramCache]: Analyzing trace with hash -282022428, now seen corresponding path program 3 times [2022-11-20 11:49:18,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:18,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808430334] [2022-11-20 11:49:18,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:18,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:49:18,616 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 [2022-11-20 11:49:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:49:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:49:18,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:49:18 BoogieIcfgContainer [2022-11-20 11:49:18,852 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:49:18,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:49:18,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:49:18,854 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:49:18,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:13" (3/4) ... [2022-11-20 11:49:18,857 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 11:49:18,910 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:49:18,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:49:18,911 INFO L158 Benchmark]: Toolchain (without parser) took 5700.32ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 97.6MB in the beginning and 136.8MB in the end (delta: -39.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:49:18,912 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:49:18,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.52ms. Allocated memory is still 140.5MB. Free memory was 97.6MB in the beginning and 109.1MB in the end (delta: -11.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:49:18,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.32ms. Allocated memory is still 140.5MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:49:18,913 INFO L158 Benchmark]: Boogie Preprocessor took 18.95ms. Allocated memory is still 140.5MB. Free memory was 107.9MB in the beginning and 106.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:49:18,913 INFO L158 Benchmark]: RCFGBuilder took 358.61ms. Allocated memory is still 140.5MB. Free memory was 106.5MB in the beginning and 97.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:49:18,913 INFO L158 Benchmark]: BuchiAutomizer took 4894.60ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 97.0MB in the beginning and 138.8MB in the end (delta: -41.8MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-11-20 11:49:18,914 INFO L158 Benchmark]: Witness Printer took 58.15ms. Allocated memory is still 169.9MB. Free memory was 138.8MB in the beginning and 136.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:49:18,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.52ms. Allocated memory is still 140.5MB. Free memory was 97.6MB in the beginning and 109.1MB in the end (delta: -11.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.32ms. Allocated memory is still 140.5MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.95ms. Allocated memory is still 140.5MB. Free memory was 107.9MB in the beginning and 106.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.61ms. Allocated memory is still 140.5MB. Free memory was 106.5MB in the beginning and 97.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4894.60ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 97.0MB in the beginning and 138.8MB in the end (delta: -41.8MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. * Witness Printer took 58.15ms. Allocated memory is still 169.9MB. Free memory was 138.8MB in the beginning and 136.8MB in the end (delta: 2.0MB). 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 4.7s and 4 iterations. TraceHistogramMax:5. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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, 0.1s 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: 189ms 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! [2022-11-20 11:49:18,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-11-20 11:49:19,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53cb0930-c510-4879-85ca-0ce3eb9005bb/bin/uautomizer-ug76WZFUDN/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)