./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i --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_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/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_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/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_52357484-df8e-4d96-b398-1a74fd8d8f9a/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 e0283c4a072a13e5b82b0728b718582152e385c6ee1404b3ed9be4e37b84a0b2 --- 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 10:58:31,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:31,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:31,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:31,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:31,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:31,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:31,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:31,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:31,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:31,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:31,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:31,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:31,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:31,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:31,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:31,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:31,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:31,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:31,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:31,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:31,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:31,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:31,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:31,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:31,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:31,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:31,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:31,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:31,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:31,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:31,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:31,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:31,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:31,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:31,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:31,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:31,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:31,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:31,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:31,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:31,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 10:58:31,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:31,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:31,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:31,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:31,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:31,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:31,793 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:31,794 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:58:31,794 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:58:31,794 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:58:31,795 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:58:31,795 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:58:31,795 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:58:31,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:31,796 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:58:31,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:58:31,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:58:31,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:58:31,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:31,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:58:31,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:58:31,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:58:31,797 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:58:31,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:31,798 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:58:31,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:31,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:58:31,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:31,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:31,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:31,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:58:31,801 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:58:31,801 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_52357484-df8e-4d96-b398-1a74fd8d8f9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0283c4a072a13e5b82b0728b718582152e385c6ee1404b3ed9be4e37b84a0b2 [2022-11-20 10:58:32,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:32,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:32,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:32,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:32,158 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:32,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2022-11-20 10:58:35,167 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:35,385 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:35,385 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2022-11-20 10:58:35,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/data/29dfc59d4/34586452aab3494883f666667057f3de/FLAGa72386b62 [2022-11-20 10:58:35,414 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/data/29dfc59d4/34586452aab3494883f666667057f3de [2022-11-20 10:58:35,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:35,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:35,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:35,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:35,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:35,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d66ded4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35, skipping insertion in model container [2022-11-20 10:58:35,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:35,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:35,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:35,821 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:58:35,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:35,888 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:58:35,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35 WrapperNode [2022-11-20 10:58:35,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:35,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:35,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:58:35,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:58:35,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,964 INFO L138 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2022-11-20 10:58:35,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:35,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:58:35,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:58:35,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:58:35,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:35,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:36,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:36,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:36,015 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:36,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:36,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:58:36,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:58:36,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:58:36,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:58:36,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (1/1) ... [2022-11-20 10:58:36,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:36,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:36,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:36,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:58:36,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:58:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:58:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:58:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:58:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:58:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:58:36,266 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:58:36,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:58:36,506 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:58:36,512 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:58:36,513 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:58:36,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:36 BoogieIcfgContainer [2022-11-20 10:58:36,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:58:36,516 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:58:36,516 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:58:36,521 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:58:36,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:58:36,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:58:35" (1/3) ... [2022-11-20 10:58:36,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cccc200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:58:36, skipping insertion in model container [2022-11-20 10:58:36,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:58:36,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:35" (2/3) ... [2022-11-20 10:58:36,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cccc200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:58:36, skipping insertion in model container [2022-11-20 10:58:36,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:58:36,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:36" (3/3) ... [2022-11-20 10:58:36,525 INFO L332 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncmp-alloca-2.i [2022-11-20 10:58:36,582 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:58:36,582 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:58:36,582 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:58:36,582 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:58:36,583 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:58:36,583 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:58:36,583 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:58:36,583 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:58:36,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 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 10:58:36,609 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-20 10:58:36,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:36,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:36,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 10:58:36,616 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:58:36,616 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:58:36,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 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 10:58:36,618 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-20 10:58:36,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:36,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:36,619 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 10:58:36,619 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:58:36,628 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~nondet18#1, main_#t~post17#1, main_~i~1#1, main_#t~nondet19#1, main_#t~ret20#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 7#L529true assume !(main_~length1~0#1 < 1); 17#L529-2true assume !(main_~length2~0#1 < 1); 2#L532-1true call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 3#L538-3true [2022-11-20 10:58:36,628 INFO L750 eck$LassoCheckResult]: Loop: 3#L538-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet16#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1; 16#L538-2true main_#t~post15#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 3#L538-3true [2022-11-20 10:58:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2022-11-20 10:58:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:36,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244761358] [2022-11-20 10:58:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:36,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:36,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:36,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:36,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:36,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2022-11-20 10:58:36,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:36,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907760374] [2022-11-20 10:58:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:36,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:36,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:36,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:36,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2022-11-20 10:58:36,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:36,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465485951] [2022-11-20 10:58:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:36,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:36,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:37,403 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:58:37,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:58:37,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:58:37,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:58:37,404 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:58:37,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:37,405 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:58:37,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:58:37,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration1_Lasso [2022-11-20 10:58:37,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:58:37,406 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:58:37,438 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 10:58:37,449 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 10:58:37,453 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 10:58:37,456 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 10:58:37,737 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 10:58:37,744 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 10:58:37,748 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 10:58:37,751 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 10:58:37,754 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 10:58:37,807 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 10:58:37,811 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 10:58:37,814 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 10:58:37,822 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 10:58:37,827 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 10:58:37,868 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 10:58:37,872 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 10:58:38,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:58:38,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:58:38,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 10:58:38,325 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 10:58:38,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:38,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:38,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:38,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:38,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,402 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 10:58:38,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:38,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:38,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:38,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 10:58:38,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:38,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,455 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 10:58:38,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 10:58:38,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:38,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:38,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:38,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-20 10:58:38,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,493 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,499 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 10:58:38,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 10:58:38,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:38,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:38,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:38,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,560 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 10:58:38,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 10:58:38,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:38,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:38,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:38,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 10:58:38,633 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 10:58:38,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:38,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:38,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:38,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,673 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,682 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 10:58:38,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:38,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:38,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:38,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 10:58:38,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:38,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:38,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,719 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,728 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 10:58:38,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 10:58:38,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:38,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:38,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:38,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:38,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:38,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:38,770 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:58:38,809 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2022-11-20 10:58:38,809 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2022-11-20 10:58:38,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:38,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,870 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,922 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:58:38,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 10:58:38,955 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-20 10:58:38,955 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:58:38,956 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1) = -1*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString1~0#1.offset >= 0] [2022-11-20 10:58:38,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:39,007 INFO L156 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2022-11-20 10:58:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:39,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:58:39,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:39,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:58:39,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:39,167 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 10:58:39,219 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 10:58:39,222 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 10:58:39,323 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 54 states and 79 transitions. Complement of second has 7 states. [2022-11-20 10:58:39,325 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 10:58:39,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 10:58:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-11-20 10:58:39,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-20 10:58:39,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:39,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-20 10:58:39,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:39,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-20 10:58:39,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:39,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 79 transitions. [2022-11-20 10:58:39,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-20 10:58:39,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 18 states and 23 transitions. [2022-11-20 10:58:39,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-20 10:58:39,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-20 10:58:39,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2022-11-20 10:58:39,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:39,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-20 10:58:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2022-11-20 10:58:39,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 10:58:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 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 10:58:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-11-20 10:58:39,386 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-20 10:58:39,386 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-20 10:58:39,387 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:58:39,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2022-11-20 10:58:39,387 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-20 10:58:39,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:39,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:39,388 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:39,388 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:58:39,389 INFO L748 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 162#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~nondet18#1, main_#t~post17#1, main_~i~1#1, main_#t~nondet19#1, main_#t~ret20#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 164#L529 assume !(main_~length1~0#1 < 1); 165#L529-2 assume !(main_~length2~0#1 < 1); 160#L532-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 156#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 157#L538-4 main_~i~1#1 := 0; 163#L543-3 [2022-11-20 10:58:39,389 INFO L750 eck$LassoCheckResult]: Loop: 163#L543-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet18#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet18#1; 170#L543-2 main_#t~post17#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 163#L543-3 [2022-11-20 10:58:39,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:39,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2022-11-20 10:58:39,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:39,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213852193] [2022-11-20 10:58:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:39,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:39,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2022-11-20 10:58:39,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:39,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182391706] [2022-11-20 10:58:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:39,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:39,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:39,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:39,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2022-11-20 10:58:39,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:39,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109843523] [2022-11-20 10:58:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:39,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:39,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:39,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-20 10:58:39,849 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:58:39,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:58:39,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:58:39,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:58:39,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:58:39,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:39,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:58:39,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:58:39,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration2_Lasso [2022-11-20 10:58:39,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:58:39,850 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:58:39,853 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 10:58:40,070 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 10:58:40,074 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 10:58:40,078 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 10:58:40,081 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 10:58:40,085 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 10:58:40,088 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 10:58:40,092 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 10:58:40,094 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 10:58:40,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:58:40,101 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 10:58:40,103 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 10:58:40,106 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 10:58:40,109 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:58:40,116 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 10:58:40,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:58:40,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:58:40,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:40,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:40,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:40,539 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 10:58:40,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:40,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:40,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:40,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:40,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 10:58:40,554 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:40,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:40,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:40,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:40,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:40,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:40,576 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:40,580 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 10:58:40,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:40,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:40,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:40,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:40,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 10:58:40,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:40,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:40,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:58:40,643 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-11-20 10:58:40,643 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-11-20 10:58:40,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:40,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:40,645 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:40,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:58:40,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 10:58:40,683 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 10:58:40,684 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:58:40,684 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_2, ULTIMATE.start_main_~nondetString2~0#1.offset, ULTIMATE.start_main_~i~1#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_2 - 1*ULTIMATE.start_main_~nondetString2~0#1.offset - 1*ULTIMATE.start_main_~i~1#1 Supporting invariants [] [2022-11-20 10:58:40,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:40,713 INFO L156 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2022-11-20 10:58:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:40,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:58:40,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:40,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:58:40,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:40,820 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 10:58:40,822 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-20 10:58:40,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:40,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 7 states. [2022-11-20 10:58:40,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:58:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-20 10:58:40,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-20 10:58:40,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:40,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 9 letters. Loop has 2 letters. [2022-11-20 10:58:40,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:40,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-20 10:58:40,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:40,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2022-11-20 10:58:40,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:58:40,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 19 states and 25 transitions. [2022-11-20 10:58:40,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 10:58:40,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-20 10:58:40,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2022-11-20 10:58:40,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:40,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-20 10:58:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2022-11-20 10:58:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-20 10:58:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 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 10:58:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2022-11-20 10:58:40,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-20 10:58:40,881 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-20 10:58:40,881 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:58:40,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2022-11-20 10:58:40,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:58:40,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:40,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:40,882 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:40,882 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:58:40,883 INFO L748 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~nondet18#1, main_#t~post17#1, main_~i~1#1, main_#t~nondet19#1, main_#t~ret20#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 289#L529 assume !(main_~length1~0#1 < 1); 290#L529-2 assume !(main_~length2~0#1 < 1); 285#L532-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 281#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 282#L538-4 main_~i~1#1 := 0; 288#L543-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 291#L543-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet19#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem4#1, cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset, cstrncmp_#t~mem5#1, cstrncmp_#t~mem7#1, cstrncmp_#t~pre6#1.base, cstrncmp_#t~pre6#1.offset, cstrncmp_#t~mem8#1, cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset, cstrncmp_#t~mem10#1, cstrncmp_#t~pre2#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1; 292#L516 assume !(0 == cstrncmp_~n#1 % 4294967296); 297#L518-4 [2022-11-20 10:58:40,883 INFO L750 eck$LassoCheckResult]: Loop: 297#L518-4 call cstrncmp_#t~mem4#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post3#1.base, 1 + cstrncmp_#t~post3#1.offset;call cstrncmp_#t~mem5#1 := read~int(cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset, 1); 298#L519 assume !(cstrncmp_#t~mem4#1 != cstrncmp_#t~mem5#1);havoc cstrncmp_#t~mem4#1;havoc cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset;havoc cstrncmp_#t~mem5#1;cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post9#1.base, 1 + cstrncmp_#t~post9#1.offset;call cstrncmp_#t~mem10#1 := read~int(cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset, 1); 293#L521 assume !(0 == cstrncmp_#t~mem10#1);havoc cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset;havoc cstrncmp_#t~mem10#1; 294#L518-1 cstrncmp_#t~pre2#1 := cstrncmp_~n#1 - 1;cstrncmp_~n#1 := cstrncmp_~n#1 - 1; 299#L518-2 assume !!(0 != cstrncmp_#t~pre2#1 % 4294967296);havoc cstrncmp_#t~pre2#1; 297#L518-4 [2022-11-20 10:58:40,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:40,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 1 times [2022-11-20 10:58:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:40,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738153483] [2022-11-20 10:58:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:40,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:40,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:40,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:40,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:40,982 INFO L85 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 1 times [2022-11-20 10:58:40,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:40,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444983167] [2022-11-20 10:58:40,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:40,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:41,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:41,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:41,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1989497660, now seen corresponding path program 1 times [2022-11-20 10:58:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:41,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820918322] [2022-11-20 10:58:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:41,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:41,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:41,727 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 10:58:41,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:41,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820918322] [2022-11-20 10:58:41,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820918322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:41,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:41,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:58:41,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739142904] [2022-11-20 10:58:41,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:41,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:41,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:58:41,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:58:41,964 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 10:58:42,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:42,130 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2022-11-20 10:58:42,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2022-11-20 10:58:42,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:58:42,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2022-11-20 10:58:42,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-20 10:58:42,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-20 10:58:42,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2022-11-20 10:58:42,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:42,132 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-20 10:58:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2022-11-20 10:58:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-11-20 10:58:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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 10:58:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-11-20 10:58:42,133 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-20 10:58:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:58:42,140 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-20 10:58:42,140 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 10:58:42,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2022-11-20 10:58:42,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:58:42,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:42,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:42,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:42,142 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:58:42,142 INFO L748 eck$LassoCheckResult]: Stem: 352#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 353#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~nondet18#1, main_#t~post17#1, main_~i~1#1, main_#t~nondet19#1, main_#t~ret20#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 355#L529 assume !(main_~length1~0#1 < 1); 356#L529-2 assume !(main_~length2~0#1 < 1); 351#L532-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 347#L538-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet16#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1; 348#L538-2 main_#t~post15#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 349#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 350#L538-4 main_~i~1#1 := 0; 354#L543-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 357#L543-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet19#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem4#1, cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset, cstrncmp_#t~mem5#1, cstrncmp_#t~mem7#1, cstrncmp_#t~pre6#1.base, cstrncmp_#t~pre6#1.offset, cstrncmp_#t~mem8#1, cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset, cstrncmp_#t~mem10#1, cstrncmp_#t~pre2#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1; 358#L516 assume !(0 == cstrncmp_~n#1 % 4294967296); 363#L518-4 [2022-11-20 10:58:42,142 INFO L750 eck$LassoCheckResult]: Loop: 363#L518-4 call cstrncmp_#t~mem4#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post3#1.base, 1 + cstrncmp_#t~post3#1.offset;call cstrncmp_#t~mem5#1 := read~int(cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset, 1); 364#L519 assume !(cstrncmp_#t~mem4#1 != cstrncmp_#t~mem5#1);havoc cstrncmp_#t~mem4#1;havoc cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset;havoc cstrncmp_#t~mem5#1;cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post9#1.base, 1 + cstrncmp_#t~post9#1.offset;call cstrncmp_#t~mem10#1 := read~int(cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset, 1); 359#L521 assume !(0 == cstrncmp_#t~mem10#1);havoc cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset;havoc cstrncmp_#t~mem10#1; 360#L518-1 cstrncmp_#t~pre2#1 := cstrncmp_~n#1 - 1;cstrncmp_~n#1 := cstrncmp_~n#1 - 1; 365#L518-2 assume !!(0 != cstrncmp_#t~pre2#1 % 4294967296);havoc cstrncmp_#t~pre2#1; 363#L518-4 [2022-11-20 10:58:42,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1351083896, now seen corresponding path program 1 times [2022-11-20 10:58:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:42,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822187113] [2022-11-20 10:58:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:42,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:42,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:42,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:42,193 INFO L85 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 2 times [2022-11-20 10:58:42,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:42,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589322288] [2022-11-20 10:58:42,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:42,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:42,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:42,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash -351427674, now seen corresponding path program 1 times [2022-11-20 10:58:42,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:42,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3683569] [2022-11-20 10:58:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:42,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:42,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:42,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3683569] [2022-11-20 10:58:42,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3683569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:42,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:42,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:58:42,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940130860] [2022-11-20 10:58:42,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:42,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:58:42,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:58:42,975 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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 10:58:43,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:43,110 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-11-20 10:58:43,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2022-11-20 10:58:43,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:58:43,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 24 transitions. [2022-11-20 10:58:43,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-20 10:58:43,111 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-20 10:58:43,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2022-11-20 10:58:43,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:43,111 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-11-20 10:58:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2022-11-20 10:58:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-11-20 10:58:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 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 10:58:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-20 10:58:43,113 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-20 10:58:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:58:43,116 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-20 10:58:43,116 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 10:58:43,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-11-20 10:58:43,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 10:58:43,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:58:43,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:58:43,118 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:43,119 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 10:58:43,119 INFO L748 eck$LassoCheckResult]: Stem: 416#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~nondet16#1, main_#t~post15#1, main_~i~0#1, main_#t~nondet18#1, main_#t~post17#1, main_~i~1#1, main_#t~nondet19#1, main_#t~ret20#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 419#L529 assume !(main_~length1~0#1 < 1); 420#L529-2 assume !(main_~length2~0#1 < 1); 411#L532-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;main_~i~0#1 := 0; 412#L538-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet16#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1; 413#L538-2 main_#t~post15#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 414#L538-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 415#L538-4 main_~i~1#1 := 0; 418#L543-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet18#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet18#1; 425#L543-2 main_#t~post17#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 426#L543-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 421#L543-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet19#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem4#1, cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset, cstrncmp_#t~mem5#1, cstrncmp_#t~mem7#1, cstrncmp_#t~pre6#1.base, cstrncmp_#t~pre6#1.offset, cstrncmp_#t~mem8#1, cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset, cstrncmp_#t~mem10#1, cstrncmp_#t~pre2#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1; 422#L516 assume !(0 == cstrncmp_~n#1 % 4294967296); 427#L518-4 [2022-11-20 10:58:43,119 INFO L750 eck$LassoCheckResult]: Loop: 427#L518-4 call cstrncmp_#t~mem4#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post3#1.base, 1 + cstrncmp_#t~post3#1.offset;call cstrncmp_#t~mem5#1 := read~int(cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset, 1); 428#L519 assume !(cstrncmp_#t~mem4#1 != cstrncmp_#t~mem5#1);havoc cstrncmp_#t~mem4#1;havoc cstrncmp_#t~post3#1.base, cstrncmp_#t~post3#1.offset;havoc cstrncmp_#t~mem5#1;cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post9#1.base, 1 + cstrncmp_#t~post9#1.offset;call cstrncmp_#t~mem10#1 := read~int(cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset, 1); 423#L521 assume !(0 == cstrncmp_#t~mem10#1);havoc cstrncmp_#t~post9#1.base, cstrncmp_#t~post9#1.offset;havoc cstrncmp_#t~mem10#1; 424#L518-1 cstrncmp_#t~pre2#1 := cstrncmp_~n#1 - 1;cstrncmp_~n#1 := cstrncmp_~n#1 - 1; 429#L518-2 assume !!(0 != cstrncmp_#t~pre2#1 % 4294967296);havoc cstrncmp_#t~pre2#1; 427#L518-4 [2022-11-20 10:58:43,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1313217430, now seen corresponding path program 1 times [2022-11-20 10:58:43,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:43,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872856698] [2022-11-20 10:58:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:43,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:43,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:43,160 INFO L85 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 3 times [2022-11-20 10:58:43,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:43,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096740049] [2022-11-20 10:58:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:43,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:43,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:43,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:43,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1019129272, now seen corresponding path program 1 times [2022-11-20 10:58:43,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:43,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574153222] [2022-11-20 10:58:43,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:43,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:43,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:58:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:58:43,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:58:45,168 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:58:45,168 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:58:45,168 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:58:45,168 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:58:45,168 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:58:45,169 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:45,169 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:58:45,169 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:58:45,169 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration5_Lasso [2022-11-20 10:58:45,169 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:58:45,169 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:58:45,174 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 10:58:45,179 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 10:58:45,183 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 10:58:45,185 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 10:58:45,188 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 10:58:45,190 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 10:58:45,192 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 10:58:45,195 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 10:58:45,198 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 10:58:45,200 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 10:58:45,233 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 10:58:45,235 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 10:58:45,248 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 10:58:45,251 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 10:58:45,253 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 10:58:45,255 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 10:58:45,258 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 10:58:45,261 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 10:58:45,264 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 10:58:45,266 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 10:58:45,269 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 10:58:46,578 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 10:58:46,581 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 10:58:46,583 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 10:58:46,586 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 10:58:46,588 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 10:58:46,590 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 10:58:46,593 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 10:58:46,596 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 10:58:47,619 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:58:47,622 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:58:47,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,624 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,632 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 10:58:47,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 10:58:47,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:47,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,672 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,680 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 10:58:47,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 10:58:47,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:47,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,704 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 10:58:47,707 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 10:58:47,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:47,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,749 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,759 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 10:58:47,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:47,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:47,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 10:58:47,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,804 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,814 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 10:58:47,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 10:58:47,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:47,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,844 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 10:58:47,846 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 10:58:47,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:47,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,868 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 10:58:47,876 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 10:58:47,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:47,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:47,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,931 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,948 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 10:58:47,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:47,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 10:58:47,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:47,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:47,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,979 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 10:58:47,981 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 10:58:47,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:47,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:47,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:47,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:47,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:47,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:47,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,031 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,039 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 10:58:48,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 10:58:48,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:48,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:48,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-20 10:58:48,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,072 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,079 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 10:58:48,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 10:58:48,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-20 10:58:48,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,106 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 10:58:48,111 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 10:58:48,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:48,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:48,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-20 10:58:48,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,141 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 10:58:48,143 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 10:58:48,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-20 10:58:48,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,160 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 10:58:48,163 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 10:58:48,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,218 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 10:58:48,224 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 10:58:48,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,266 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 10:58:48,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 10:58:48,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,303 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 10:58:48,310 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 10:58:48,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:48,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:48,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,346 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,350 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 10:58:48,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 10:58:48,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,379 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,387 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 10:58:48,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 10:58:48,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,427 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,431 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 10:58:48,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 10:58:48,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:58:48,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:58:48,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:58:48,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:58:48,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-11-20 10:58:48,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,453 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 10:58:48,458 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 10:58:48,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:58:48,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:58:48,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:58:48,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:58:48,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:58:48,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:58:48,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:58:48,586 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-20 10:58:48,586 INFO L444 ModelExtractionUtils]: 34 out of 52 variables were initially zero. Simplification set additionally 15 variables to zero. [2022-11-20 10:58:48,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:58:48,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:48,591 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 10:58:48,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:58:48,604 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 10:58:48,605 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:58:48,605 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~s2#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_3) = -1*ULTIMATE.start_cstrncmp_~s2#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14#1.base)_3 Supporting invariants [] [2022-11-20 10:58:48,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:48,801 INFO L156 tatePredicateManager]: 27 out of 28 supporting invariants were superfluous and have been removed [2022-11-20 10:58:48,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:48,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:58:48,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:48,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:58:48,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:49,001 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 10:58:49,002 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-11-20 10:58:49,002 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 10:58:49,061 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 24 states and 28 transitions. Complement of second has 6 states. [2022-11-20 10:58:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 10:58:49,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 10:58:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-11-20 10:58:49,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 14 letters. Loop has 5 letters. [2022-11-20 10:58:49,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:49,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 19 letters. Loop has 5 letters. [2022-11-20 10:58:49,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:49,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 14 letters. Loop has 10 letters. [2022-11-20 10:58:49,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:58:49,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2022-11-20 10:58:49,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:58:49,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2022-11-20 10:58:49,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 10:58:49,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 10:58:49,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 10:58:49,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:49,080 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:58:49,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:58:49,080 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:58:49,080 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 10:58:49,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:58:49,081 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 10:58:49,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 10:58:49,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:58:49 BoogieIcfgContainer [2022-11-20 10:58:49,088 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:58:49,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:58:49,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:58:49,089 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:58:49,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:36" (3/4) ... [2022-11-20 10:58:49,097 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:58:49,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:58:49,098 INFO L158 Benchmark]: Toolchain (without parser) took 13679.41ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 103.6MB in the beginning and 153.2MB in the end (delta: -49.6MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-20 10:58:49,098 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:58:49,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.08ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 109.5MB in the end (delta: -6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 10:58:49,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.38ms. Allocated memory is still 146.8MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:58:49,100 INFO L158 Benchmark]: Boogie Preprocessor took 53.67ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 106.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:58:49,100 INFO L158 Benchmark]: RCFGBuilder took 495.87ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 92.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 10:58:49,101 INFO L158 Benchmark]: BuchiAutomizer took 12571.71ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 92.1MB in the beginning and 154.2MB in the end (delta: -62.2MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-20 10:58:49,101 INFO L158 Benchmark]: Witness Printer took 8.82ms. Allocated memory is still 211.8MB. Free memory was 154.2MB in the beginning and 153.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:58:49,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.08ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 109.5MB in the end (delta: -6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.38ms. Allocated memory is still 146.8MB. Free memory was 109.5MB in the beginning and 107.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.67ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 106.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.87ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 92.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 12571.71ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 92.1MB in the beginning and 154.2MB in the end (delta: -62.2MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 8.82ms. Allocated memory is still 211.8MB. Free memory was 154.2MB in the beginning and 153.2MB in the end (delta: 1.0MB). There was no memory consumed. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[nondetString1] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * nondetString2 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s2 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 11.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 250 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 79 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital216 mio100 ax110 hnf100 lsp82 ukn78 mio100 lsp50 div167 bol100 ite100 ukn100 eq161 hnf92 smp72 dnf100 smp100 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 10:58:49,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52357484-df8e-4d96-b398-1a74fd8d8f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE