./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:51:17,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:51:17,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:51:17,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:51:17,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:51:17,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:51:17,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:51:17,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:51:17,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:51:17,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:51:17,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:51:17,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:51:17,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:51:18,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:51:18,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:51:18,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:51:18,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:51:18,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:51:18,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:51:18,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:51:18,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:51:18,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:51:18,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:51:18,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:51:18,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:51:18,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:51:18,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:51:18,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:51:18,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:51:18,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:51:18,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:51:18,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:51:18,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:51:18,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:51:18,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:51:18,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:51:18,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:51:18,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:51:18,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:51:18,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:51:18,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:51:18,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 22:51:18,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:51:18,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:51:18,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:51:18,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:51:18,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:51:18,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:51:18,107 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:51:18,108 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:51:18,108 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:51:18,108 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:51:18,109 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:51:18,110 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:51:18,110 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:51:18,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:51:18,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:51:18,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:51:18,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:51:18,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:51:18,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:51:18,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:51:18,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:51:18,112 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:51:18,112 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:51:18,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:51:18,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:51:18,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:51:18,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:51:18,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:51:18,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:51:18,117 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:51:18,117 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_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 [2021-10-28 22:51:18,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:51:18,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:51:18,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:51:18,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:51:18,419 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:51:18,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-10-28 22:51:18,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/data/ad415c833/eac9ddd62ce840ceb0e4386c23b76df0/FLAG7d7dd2b13 [2021-10-28 22:51:19,126 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:51:19,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-10-28 22:51:19,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/data/ad415c833/eac9ddd62ce840ceb0e4386c23b76df0/FLAG7d7dd2b13 [2021-10-28 22:51:19,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/data/ad415c833/eac9ddd62ce840ceb0e4386c23b76df0 [2021-10-28 22:51:19,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:51:19,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:51:19,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:19,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:51:19,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:51:19,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37605535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19, skipping insertion in model container [2021-10-28 22:51:19,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:51:19,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:51:19,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:19,749 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:51:19,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:51:19,860 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:51:19,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19 WrapperNode [2021-10-28 22:51:19,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:51:19,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:19,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:51:19,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:51:19,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:51:19,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:51:19,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:51:19,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:51:19,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:51:19,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:51:19,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:51:19,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:51:19,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (1/1) ... [2021-10-28 22:51:19,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:19,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:19,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:19,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:51:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:51:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:51:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:51:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:51:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:51:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:51:20,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:51:20,279 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 22:51:20,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:20 BoogieIcfgContainer [2021-10-28 22:51:20,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:51:20,283 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:51:20,283 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:51:20,286 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:51:20,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:51:20,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:51:19" (1/3) ... [2021-10-28 22:51:20,289 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47d2a4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:51:20, skipping insertion in model container [2021-10-28 22:51:20,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:51:20,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:51:19" (2/3) ... [2021-10-28 22:51:20,290 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47d2a4e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:51:20, skipping insertion in model container [2021-10-28 22:51:20,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:51:20,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:20" (3/3) ... [2021-10-28 22:51:20,291 INFO L389 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2021-10-28 22:51:20,372 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:51:20,379 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:51:20,379 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:51:20,379 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:51:20,379 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:51:20,379 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:51:20,380 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:51:20,380 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:51:20,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:20,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:51:20,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:20,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:20,430 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:51:20,431 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 22:51:20,431 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:51:20,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:20,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:51:20,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:20,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:20,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:51:20,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 22:51:20,443 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 3#L569true [2021-10-28 22:51:20,444 INFO L793 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 13#L564true goto; 12#L567true call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 8#L564-1true assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 10#L566true assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 3#L569true [2021-10-28 22:51:20,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:20,451 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 22:51:20,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:20,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690570998] [2021-10-28 22:51:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:20,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:20,636 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:20,745 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:20,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:20,748 INFO L85 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2021-10-28 22:51:20,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:20,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223209972] [2021-10-28 22:51:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:20,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:20,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:20,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223209972] [2021-10-28 22:51:20,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223209972] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:20,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:20,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 22:51:20,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622594492] [2021-10-28 22:51:20,839 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:51:20,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:51:20,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:51:20,875 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 1 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:20,883 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-10-28 22:51:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:51:20,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-28 22:51:20,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:51:20,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-10-28 22:51:20,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 22:51:20,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 22:51:20,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-28 22:51:20,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:20,897 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 22:51:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-28 22:51:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 22:51:20,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 22:51:20,928 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 22:51:20,928 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 22:51:20,928 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:51:20,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 22:51:20,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 22:51:20,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:20,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:20,930 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:51:20,930 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:20,930 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 41#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 38#L569 [2021-10-28 22:51:20,931 INFO L793 eck$LassoCheckResult]: Loop: 38#L569 goto; 39#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 44#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 43#L564 goto; 45#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 46#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 47#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 38#L569 [2021-10-28 22:51:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-10-28 22:51:20,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:20,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151234805] [2021-10-28 22:51:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:20,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:21,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:21,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:21,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2021-10-28 22:51:21,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:21,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207531708] [2021-10-28 22:51:21,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:21,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:21,129 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:21,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:21,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:21,168 INFO L85 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2021-10-28 22:51:21,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:21,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050501507] [2021-10-28 22:51:21,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:21,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:21,245 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:21,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:22,587 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:51:22,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:51:22,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:51:22,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:51:22,588 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:51:22,589 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:22,589 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:51:22,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:51:22,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2021-10-28 22:51:22,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:51:22,589 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:51:22,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:22,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:22,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:22,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:23,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:51:23,955 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:51:23,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:23,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:23,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:51:23,977 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 [2021-10-28 22:51:23,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:23,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:23,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:23,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:23,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:23,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:23,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:24,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,063 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 [2021-10-28 22:51:24,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:24,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:24,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:24,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:51:24,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,139 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 [2021-10-28 22:51:24,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:24,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:24,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:24,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:51:24,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:51:24,182 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 [2021-10-28 22:51:24,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:24,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:24,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 22:51:24,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:51:24,244 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 [2021-10-28 22:51:24,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:24,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:24,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:51:24,311 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 [2021-10-28 22:51:24,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:24,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:24,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:51:24,380 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 [2021-10-28 22:51:24,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:24,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:24,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:51:24,435 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 [2021-10-28 22:51:24,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:24,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:24,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:24,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,527 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:51:24,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:24,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:51:24,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:24,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:24,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:24,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:24,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:24,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:51:24,582 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 22:51:24,583 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 22:51:24,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:24,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:24,599 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:24,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:51:24,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:51:24,656 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:51:24,656 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:51:24,657 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1 + 1 Supporting invariants [] [2021-10-28 22:51:24,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:24,889 INFO L297 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2021-10-28 22:51:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:24,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:51:24,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:24,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 22:51:24,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:25,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:25,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-10-28 22:51:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:25,163 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 22:51:25,164 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,203 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 27 transitions. Complement of second has 6 states. [2021-10-28 22:51:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:51:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-28 22:51:25,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2021-10-28 22:51:25,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:25,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2021-10-28 22:51:25,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:25,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2021-10-28 22:51:25,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:25,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-10-28 22:51:25,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:25,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2021-10-28 22:51:25,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 22:51:25,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 22:51:25,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-28 22:51:25,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:51:25,213 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-28 22:51:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-28 22:51:25,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-28 22:51:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-28 22:51:25,216 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 22:51:25,216 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 22:51:25,216 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:51:25,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-28 22:51:25,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:25,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:25,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:25,217 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 22:51:25,217 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:51:25,218 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 288#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 297#L569 goto; 284#L560 [2021-10-28 22:51:25,218 INFO L793 eck$LassoCheckResult]: Loop: 284#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 292#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 289#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 284#L560 [2021-10-28 22:51:25,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-10-28 22:51:25,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:25,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262836397] [2021-10-28 22:51:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:25,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:25,242 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:25,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:25,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-10-28 22:51:25,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:25,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49990847] [2021-10-28 22:51:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:25,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:25,275 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:25,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2021-10-28 22:51:25,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:25,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216878620] [2021-10-28 22:51:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:25,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:25,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:25,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:26,440 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:51:26,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:51:26,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:51:26,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:51:26,440 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:51:26,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:26,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:51:26,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:51:26,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2021-10-28 22:51:26,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:51:26,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:51:26,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:26,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:26,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:27,581 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:51:27,581 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:51:27,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,585 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,594 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 [2021-10-28 22:51:27,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:27,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:27,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:27,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:51:27,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:27,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:27,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,655 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:51:27,658 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 [2021-10-28 22:51:27,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:27,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:27,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:27,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:27,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-28 22:51:27,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,695 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:51:27,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:51:27,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:27,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:27,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:27,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:27,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,767 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,775 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 [2021-10-28 22:51:27,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:27,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:27,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:51:27,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:27,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:27,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,844 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:51:27,846 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 [2021-10-28 22:51:27,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:27,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:27,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:27,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:27,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,915 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 22:51:27,918 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 [2021-10-28 22:51:27,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:27,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:27,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:27,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:27,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:27,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:27,971 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:27,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:51:27,972 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 [2021-10-28 22:51:27,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:27,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:27,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:27,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:27,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:27,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:28,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:28,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,048 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:51:28,058 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 [2021-10-28 22:51:28,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:28,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:28,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:28,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:28,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:28,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:28,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:28,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,123 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,134 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 [2021-10-28 22:51:28,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:28,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:28,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:28,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:28,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:28,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:51:28,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:28,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:28,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,206 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:51:28,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:51:28,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:28,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:28,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:28,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:28,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:28,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:28,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:28,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,271 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,276 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 [2021-10-28 22:51:28,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:28,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:28,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:28,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:28,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:28,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:51:28,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:28,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 22:51:28,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,315 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 22:51:28,317 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 [2021-10-28 22:51:28,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:28,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:28,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:28,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:28,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:28,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:28,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 22:51:28,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,375 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,384 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 [2021-10-28 22:51:28,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:28,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:28,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:28,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:28,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:28,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:28,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 22:51:28,423 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:51:28,437 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-28 22:51:28,437 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 22:51:28,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:28,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:28,438 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:28,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 22:51:28,439 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:51:28,447 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:51:28,447 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:51:28,448 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2 Supporting invariants [] [2021-10-28 22:51:28,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:28,629 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-10-28 22:51:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:28,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:51:28,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:28,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:51:28,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:28,748 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-28 22:51:28,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2021-10-28 22:51:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:28,785 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 22:51:28,786 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,816 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 43 transitions. Complement of second has 7 states. [2021-10-28 22:51:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:51:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-28 22:51:28,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 22:51:28,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:28,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 22:51:28,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:28,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 22:51:28,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:28,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2021-10-28 22:51:28,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:28,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2021-10-28 22:51:28,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 22:51:28,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 22:51:28,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-10-28 22:51:28,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:51:28,822 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-28 22:51:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-10-28 22:51:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-10-28 22:51:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-10-28 22:51:28,825 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 22:51:28,825 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 22:51:28,825 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:51:28,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2021-10-28 22:51:28,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:28,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:28,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:28,832 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:28,833 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:51:28,834 INFO L791 eck$LassoCheckResult]: Stem: 523#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 524#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 519#L569 goto; 520#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 536#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 528#L564 goto; 533#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 534#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 535#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 537#L569 goto; 526#L560 [2021-10-28 22:51:28,834 INFO L793 eck$LassoCheckResult]: Loop: 526#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 531#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 525#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 526#L560 [2021-10-28 22:51:28,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2021-10-28 22:51:28,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:28,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413846156] [2021-10-28 22:51:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:28,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:28,873 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:28,928 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:28,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2021-10-28 22:51:28,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:28,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134301565] [2021-10-28 22:51:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:28,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:28,976 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:28,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2021-10-28 22:51:28,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:29,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819887599] [2021-10-28 22:51:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:29,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:29,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:29,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819887599] [2021-10-28 22:51:29,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819887599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762104170] [2021-10-28 22:51:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:29,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:29,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:29,176 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:29,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 22:51:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:29,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 22:51:29,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:29,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-28 22:51:29,473 INFO L354 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2021-10-28 22:51:29,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 35 [2021-10-28 22:51:29,526 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 22:51:29,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-10-28 22:51:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:29,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762104170] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:29,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:51:29,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-10-28 22:51:29,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960477759] [2021-10-28 22:51:29,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:29,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 22:51:29,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-28 22:51:29,657 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:29,827 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2021-10-28 22:51:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 22:51:29,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2021-10-28 22:51:29,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:29,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2021-10-28 22:51:29,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 22:51:29,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 22:51:29,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-10-28 22:51:29,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:51:29,831 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-10-28 22:51:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-10-28 22:51:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-10-28 22:51:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-10-28 22:51:29,833 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 22:51:29,833 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 22:51:29,833 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:51:29,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-10-28 22:51:29,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:29,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:29,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:29,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:29,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:51:29,835 INFO L791 eck$LassoCheckResult]: Stem: 644#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 645#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 641#L569 goto; 642#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 653#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 648#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 649#L564 goto; 654#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 650#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 651#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 655#L569 goto; 647#L560 [2021-10-28 22:51:29,835 INFO L793 eck$LassoCheckResult]: Loop: 647#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 652#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 646#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 647#L560 [2021-10-28 22:51:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2021-10-28 22:51:29,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:29,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047192695] [2021-10-28 22:51:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:29,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:29,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:29,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047192695] [2021-10-28 22:51:29,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047192695] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:51:29,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:51:29,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:51:29,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673627182] [2021-10-28 22:51:29,917 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:51:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2021-10-28 22:51:29,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:29,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872706590] [2021-10-28 22:51:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:29,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:29,924 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:29,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:30,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:51:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:51:30,018 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:30,047 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-28 22:51:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:51:30,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-10-28 22:51:30,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:30,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2021-10-28 22:51:30,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 22:51:30,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 22:51:30,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-10-28 22:51:30,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:51:30,049 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-28 22:51:30,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-10-28 22:51:30,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 22:51:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-28 22:51:30,051 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-28 22:51:30,052 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-28 22:51:30,052 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 22:51:30,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-10-28 22:51:30,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:30,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:30,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:30,053 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:30,054 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:51:30,054 INFO L791 eck$LassoCheckResult]: Stem: 686#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 687#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 682#L569 goto; 683#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 695#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 690#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 685#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 699#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 698#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 696#L564 goto; 691#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 692#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 693#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 697#L569 goto; 689#L560 [2021-10-28 22:51:30,054 INFO L793 eck$LassoCheckResult]: Loop: 689#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 694#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 688#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 689#L560 [2021-10-28 22:51:30,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2021-10-28 22:51:30,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:30,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275264399] [2021-10-28 22:51:30,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:30,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:30,082 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:30,111 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:30,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:30,111 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2021-10-28 22:51:30,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:30,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641329514] [2021-10-28 22:51:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:30,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:30,117 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:30,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:30,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2021-10-28 22:51:30,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:30,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375711138] [2021-10-28 22:51:30,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:30,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:30,151 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:30,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:33,152 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:51:33,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:51:33,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:51:33,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:51:33,153 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:51:33,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:33,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:51:33,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:51:33,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2021-10-28 22:51:33,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:51:33,153 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:51:33,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:33,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:51:34,251 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:51:34,252 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:51:34,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,258 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 22:51:34,260 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 [2021-10-28 22:51:34,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:34,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:34,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:34,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 22:51:34,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,313 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 22:51:34,319 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 [2021-10-28 22:51:34,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,385 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,392 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 [2021-10-28 22:51:34,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:34,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:34,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:34,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 22:51:34,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,456 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 22:51:34,457 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 [2021-10-28 22:51:34,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:34,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:34,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:34,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,502 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 22:51:34,505 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 [2021-10-28 22:51:34,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:34,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:34,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:34,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 22:51:34,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,537 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 22:51:34,539 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 [2021-10-28 22:51:34,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:51:34,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:51:34,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:51:34,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,570 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 22:51:34,572 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 [2021-10-28 22:51:34,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 22:51:34,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,608 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 22:51:34,610 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 [2021-10-28 22:51:34,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,691 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,708 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 [2021-10-28 22:51:34,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 22:51:34,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,779 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,781 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 [2021-10-28 22:51:34,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 22:51:34,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,846 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,848 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 [2021-10-28 22:51:34,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 22:51:34,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:34,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,894 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 22:51:34,896 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 [2021-10-28 22:51:34,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 22:51:34,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,930 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,932 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 [2021-10-28 22:51:34,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 22:51:34,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:34,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 22:51:34,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:34,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:34,967 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:34,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 22:51:34,973 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 [2021-10-28 22:51:34,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:34,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:34,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:34,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:34,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:34,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:34,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:35,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:35,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:35,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:35,008 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:35,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 22:51:35,016 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 [2021-10-28 22:51:35,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:35,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:35,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:35,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:35,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:35,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:35,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:51:35,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 22:51:35,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:35,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:35,053 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:35,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 22:51:35,055 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 [2021-10-28 22:51:35,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:51:35,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:51:35,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:51:35,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:51:35,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:51:35,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:51:35,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:51:35,089 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 22:51:35,089 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 22:51:35,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:51:35,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:35,091 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:51:35,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 22:51:35,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:51:35,104 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:51:35,104 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:51:35,104 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3 Supporting invariants [] [2021-10-28 22:51:35,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 22:51:35,232 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-10-28 22:51:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:51:35,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:51:35,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:35,402 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-28 22:51:35,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2021-10-28 22:51:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:35,437 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 22:51:35,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,457 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 7 states. [2021-10-28 22:51:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:51:35,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 22:51:35,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 22:51:35,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:35,459 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 22:51:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:51:35,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:51:35,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:35,607 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-28 22:51:35,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2021-10-28 22:51:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:35,640 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 22:51:35,640 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,683 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 59 transitions. Complement of second has 9 states. [2021-10-28 22:51:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 22:51:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-10-28 22:51:35,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-28 22:51:35,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:35,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-28 22:51:35,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:35,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-28 22:51:35,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:51:35,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2021-10-28 22:51:35,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:35,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2021-10-28 22:51:35,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 22:51:35,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 22:51:35,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-10-28 22:51:35,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:51:35,688 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 22:51:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-10-28 22:51:35,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-10-28 22:51:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-10-28 22:51:35,696 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-28 22:51:35,696 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-28 22:51:35,696 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 22:51:35,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2021-10-28 22:51:35,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 22:51:35,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:51:35,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:51:35,701 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:51:35,702 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:51:35,703 INFO L791 eck$LassoCheckResult]: Stem: 1069#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1070#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 1065#L569 goto; 1066#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1080#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1073#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1074#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1082#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1083#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 1096#L564 goto; 1094#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1077#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1078#L566 assume 0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2);havoc f_#t~mem14; 1088#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1090#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1087#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 1086#L569 goto; 1072#L560 [2021-10-28 22:51:35,703 INFO L793 eck$LassoCheckResult]: Loop: 1072#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1079#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1071#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1072#L560 [2021-10-28 22:51:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2021-10-28 22:51:35,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:35,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978138233] [2021-10-28 22:51:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:35,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 22:51:35,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:51:35,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978138233] [2021-10-28 22:51:35,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978138233] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:35,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506254549] [2021-10-28 22:51:35,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:35,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:51:35,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:51:35,815 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:51:35,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 22:51:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:51:35,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 22:51:35,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:51:36,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 22:51:36,046 INFO L354 Elim1Store]: treesize reduction 132, result has 30.9 percent of original size [2021-10-28 22:51:36,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 66 [2021-10-28 22:51:36,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-28 22:51:36,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-28 22:51:36,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-28 22:51:36,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-28 22:51:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:51:36,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506254549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:51:36,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:51:36,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 22:51:36,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681881822] [2021-10-28 22:51:36,307 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:51:36,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:51:36,307 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 5 times [2021-10-28 22:51:36,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:51:36,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643688980] [2021-10-28 22:51:36,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:51:36,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:51:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:36,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:51:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:51:36,317 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:51:36,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:51:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:51:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:51:36,411 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:51:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:51:36,537 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2021-10-28 22:51:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 22:51:36,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 57 transitions. [2021-10-28 22:51:36,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:51:36,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 0 states and 0 transitions. [2021-10-28 22:51:36,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:51:36,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:51:36,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:51:36,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:51:36,540 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:51:36,540 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:51:36,540 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:51:36,540 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 22:51:36,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:51:36,541 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:51:36,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 22:51:36,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:51:36 BoogieIcfgContainer [2021-10-28 22:51:36,546 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:51:36,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:51:36,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:51:36,547 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:51:36,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:51:20" (3/4) ... [2021-10-28 22:51:36,551 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:51:36,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:51:36,552 INFO L168 Benchmark]: Toolchain (without parser) took 17165.53 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 123.4 MB in the beginning and 150.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:36,553 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 96.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:36,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.68 ms. Allocated memory is still 157.3 MB. Free memory was 123.4 MB in the beginning and 126.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:36,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 157.3 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:36,554 INFO L168 Benchmark]: Boogie Preprocessor took 27.45 ms. Allocated memory is still 157.3 MB. Free memory was 124.3 MB in the beginning and 123.6 MB in the end (delta: 715.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:36,555 INFO L168 Benchmark]: RCFGBuilder took 341.12 ms. Allocated memory is still 157.3 MB. Free memory was 122.9 MB in the beginning and 111.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:36,556 INFO L168 Benchmark]: BuchiAutomizer took 16263.86 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 111.0 MB in the beginning and 151.8 MB in the end (delta: -40.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:36,556 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 226.5 MB. Free memory was 151.8 MB in the beginning and 150.8 MB in the end (delta: 981.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:36,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 96.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.68 ms. Allocated memory is still 157.3 MB. Free memory was 123.4 MB in the beginning and 126.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 157.3 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.45 ms. Allocated memory is still 157.3 MB. Free memory was 124.3 MB in the beginning and 123.6 MB in the end (delta: 715.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 341.12 ms. Allocated memory is still 157.3 MB. Free memory was 122.9 MB in the beginning and 111.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 16263.86 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 111.0 MB in the beginning and 151.8 MB in the end (delta: -40.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.59 ms. Allocated memory is still 226.5 MB. Free memory was 151.8 MB in the beginning and 150.8 MB in the end (delta: 981.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[j][j] + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.2s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 14.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 78 SDtfs, 68 SDslu, 153 SDs, 0 SdLazy, 191 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital866 mio100 ax103 hnf100 lsp95 ukn41 mio100 lsp33 div106 bol100 ite100 ukn100 eq188 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 5 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 22:51:36,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-10-28 22:51:36,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-28 22:51:37,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b00a336-47ee-4456-871e-caa53ee8e7f9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...