./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 057ccf24320449dcfcdf9e97b0c54a9a5f5069817cc6fb0974ef7391579d7b26 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:13:40,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:13:40,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:13:40,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:13:40,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:13:40,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:13:40,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:13:40,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:13:40,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:13:40,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:13:40,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:13:40,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:13:40,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:13:40,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:13:40,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:13:40,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:13:40,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:13:40,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:13:40,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:13:40,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:13:40,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:13:40,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:13:40,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:13:40,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:13:40,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:13:40,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:13:40,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:13:40,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:13:40,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:13:40,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:13:40,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:13:40,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:13:40,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:13:40,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:13:40,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:13:40,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:13:40,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:13:40,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:13:40,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:13:40,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:13:40,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:13:40,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:13:40,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:13:40,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:13:40,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:13:40,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:13:40,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:13:40,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:13:40,250 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:13:40,250 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:13:40,251 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:13:40,251 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:13:40,251 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:13:40,251 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:13:40,252 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:13:40,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:13:40,252 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:13:40,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:13:40,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:13:40,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:13:40,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:13:40,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:13:40,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:13:40,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:13:40,256 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:13:40,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:13:40,256 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:13:40,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:13:40,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:13:40,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:13:40,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:13:40,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:13:40,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:13:40,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:13:40,261 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:13:40,262 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_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057ccf24320449dcfcdf9e97b0c54a9a5f5069817cc6fb0974ef7391579d7b26 [2021-10-21 19:13:40,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:13:40,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:13:40,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:13:40,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:13:40,606 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:13:40,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2021-10-21 19:13:40,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/data/fd099479d/baf521a1ccb245849cff5ab3890b2f2d/FLAGd36ede136 [2021-10-21 19:13:41,219 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:13:41,219 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c [2021-10-21 19:13:41,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/data/fd099479d/baf521a1ccb245849cff5ab3890b2f2d/FLAGd36ede136 [2021-10-21 19:13:41,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/data/fd099479d/baf521a1ccb245849cff5ab3890b2f2d [2021-10-21 19:13:41,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:13:41,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:13:41,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:13:41,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:13:41,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:13:41,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:41,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0e2587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41, skipping insertion in model container [2021-10-21 19:13:41,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:41,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:13:41,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:13:41,802 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c[338,351] [2021-10-21 19:13:41,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:13:41,918 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:13:41,931 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/sv-benchmarks/c/systemc/pc_sfifo_2.cil-2.c[338,351] [2021-10-21 19:13:41,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:13:41,977 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:13:41,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41 WrapperNode [2021-10-21 19:13:41,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:13:41,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:13:41,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:13:41,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:13:41,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:13:42,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:13:42,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:13:42,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:13:42,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:13:42,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:13:42,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:13:42,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:13:42,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (1/1) ... [2021-10-21 19:13:42,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:42,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:42,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:42,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:13:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:13:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:13:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:13:42,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:13:42,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:13:42,599 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2021-10-21 19:13:42,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:13:42 BoogieIcfgContainer [2021-10-21 19:13:42,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:13:42,602 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:13:42,602 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:13:42,605 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:13:42,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:13:42,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:13:41" (1/3) ... [2021-10-21 19:13:42,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78d8a045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:13:42, skipping insertion in model container [2021-10-21 19:13:42,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:13:42,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:41" (2/3) ... [2021-10-21 19:13:42,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78d8a045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:13:42, skipping insertion in model container [2021-10-21 19:13:42,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:13:42,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:13:42" (3/3) ... [2021-10-21 19:13:42,610 INFO L389 chiAutomizerObserver]: Analyzing ICFG pc_sfifo_2.cil-2.c [2021-10-21 19:13:42,661 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:13:42,663 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:13:42,666 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:13:42,667 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:13:42,667 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:13:42,667 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:13:42,667 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:13:42,671 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:13:42,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 93 states, 92 states have (on average 1.5978260869565217) internal successors, (147), 92 states have internal predecessors, (147), 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) [2021-10-21 19:13:42,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2021-10-21 19:13:42,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:42,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:42,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:42,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:42,751 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:13:42,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 93 states, 92 states have (on average 1.5978260869565217) internal successors, (147), 92 states have internal predecessors, (147), 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) [2021-10-21 19:13:42,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2021-10-21 19:13:42,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:42,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:42,769 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:42,769 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:42,777 INFO L791 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 59#L-1true havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 6#L454true havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 82#L214true assume !(1 == ~q_req_up~0); 22#L214-1true assume !(1 == ~p_dw_i~0);~p_dw_st~0 := 2; 88#L229-1true assume !(1 == ~c_dr_i~0);~c_dr_st~0 := 2; 74#L234-1true assume !(0 == ~q_read_ev~0); 55#L267-1true assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 5#L272-1true havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 92#L57true assume 1 == ~p_dw_pc~0; 56#L58true assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 81#L68true is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 26#L69true activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 12#L307true assume !(0 != activate_threads_~tmp~1); 27#L307-2true havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 94#L76true assume !(1 == ~c_dr_pc~0); 73#L76-2true is_do_read_c_triggered_~__retres1~1 := 0; 76#L87true is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 44#L88true activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 63#L315true assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 23#L315-2true assume !(1 == ~q_read_ev~0); 75#L285-1true assume !(1 == ~q_write_ev~0); 51#L411-1true [2021-10-21 19:13:42,778 INFO L793 eck$LassoCheckResult]: Loop: 51#L411-1true assume !false; 83#L412true start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 40#L356true assume false; 50#L372true start_simulation_~kernel_st~0 := 2; 15#L214-2true assume !(1 == ~q_req_up~0); 28#L214-3true start_simulation_~kernel_st~0 := 3; 37#L267-2true assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 86#L267-4true assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 13#L272-3true havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 77#L57-3true assume 1 == ~p_dw_pc~0; 14#L58-1true assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 43#L68-1true is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 87#L69-1true activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 70#L307-3true assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 31#L307-5true havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 8#L76-3true assume !(1 == ~c_dr_pc~0); 78#L76-5true is_do_read_c_triggered_~__retres1~1 := 0; 11#L87-1true is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 68#L88-1true activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 69#L315-3true assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 58#L315-5true assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 38#L285-3true assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 60#L290-3true havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 67#L247-1true assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 84#L259-1true exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 21#L260-1true stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 17#L386true assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 34#L393true stop_simulation_#res := stop_simulation_~__retres2~0; 25#L394true start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 62#L428true assume !(0 != start_simulation_~tmp~4); 51#L411-1true [2021-10-21 19:13:42,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:42,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1146955365, now seen corresponding path program 1 times [2021-10-21 19:13:42,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:42,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971582391] [2021-10-21 19:13:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:42,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971582391] [2021-10-21 19:13:43,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971582391] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:13:43,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121437465] [2021-10-21 19:13:43,063 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:43,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1355907560, now seen corresponding path program 1 times [2021-10-21 19:13:43,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393180136] [2021-10-21 19:13:43,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393180136] [2021-10-21 19:13:43,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393180136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:13:43,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740533479] [2021-10-21 19:13:43,087 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:43,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:43,106 INFO L87 Difference]: Start difference. First operand has 93 states, 92 states have (on average 1.5978260869565217) internal successors, (147), 92 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-21 19:13:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:43,194 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2021-10-21 19:13:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:43,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 135 transitions. [2021-10-21 19:13:43,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-10-21 19:13:43,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 128 transitions. [2021-10-21 19:13:43,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2021-10-21 19:13:43,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2021-10-21 19:13:43,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 128 transitions. [2021-10-21 19:13:43,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:43,248 INFO L681 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2021-10-21 19:13:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 128 transitions. [2021-10-21 19:13:43,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-10-21 19:13:43,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.4883720930232558) internal successors, (128), 85 states have internal predecessors, (128), 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) [2021-10-21 19:13:43,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 128 transitions. [2021-10-21 19:13:43,300 INFO L704 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2021-10-21 19:13:43,300 INFO L587 BuchiCegarLoop]: Abstraction has 86 states and 128 transitions. [2021-10-21 19:13:43,301 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:13:43,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 128 transitions. [2021-10-21 19:13:43,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-10-21 19:13:43,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:43,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:43,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:43,315 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:43,315 INFO L791 eck$LassoCheckResult]: Stem: 279#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 273#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 199#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 200#L214 assume !(1 == ~q_req_up~0); 235#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 236#L229-1 assume !(1 == ~c_dr_i~0);~c_dr_st~0 := 2; 280#L234-1 assume !(0 == ~q_read_ev~0); 268#L267-1 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 197#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 198#L57 assume 1 == ~p_dw_pc~0; 269#L58 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 270#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 242#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 216#L307 assume !(0 != activate_threads_~tmp~1); 217#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 243#L76 assume !(1 == ~c_dr_pc~0); 213#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 212#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 259#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 260#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 237#L315-2 assume !(1 == ~q_read_ev~0); 238#L285-1 assume !(1 == ~q_write_ev~0); 266#L411-1 [2021-10-21 19:13:43,316 INFO L793 eck$LassoCheckResult]: Loop: 266#L411-1 assume !false; 267#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 249#L356 assume !false; 254#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 261#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 195#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 196#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 221#L336 assume !(0 != eval_~tmp___1~0); 222#L372 start_simulation_~kernel_st~0 := 2; 223#L214-2 assume !(1 == ~q_req_up~0); 225#L214-3 start_simulation_~kernel_st~0 := 3; 244#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 250#L267-4 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 214#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 215#L57-3 assume 1 == ~p_dw_pc~0; 218#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 219#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 258#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 278#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 247#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 204#L76-3 assume !(1 == ~c_dr_pc~0); 205#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 209#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 210#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 277#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 272#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 251#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 252#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 274#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 265#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 234#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 226#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 227#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 240#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 241#L428 assume !(0 != start_simulation_~tmp~4); 266#L411-1 [2021-10-21 19:13:43,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1153867225, now seen corresponding path program 1 times [2021-10-21 19:13:43,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674110163] [2021-10-21 19:13:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674110163] [2021-10-21 19:13:43,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674110163] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:13:43,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419467429] [2021-10-21 19:13:43,372 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,373 INFO L82 PathProgramCache]: Analyzing trace with hash 91737555, now seen corresponding path program 1 times [2021-10-21 19:13:43,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235224772] [2021-10-21 19:13:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235224772] [2021-10-21 19:13:43,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235224772] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:43,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493835158] [2021-10-21 19:13:43,446 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:43,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:43,447 INFO L87 Difference]: Start difference. First operand 86 states and 128 transitions. cyclomatic complexity: 43 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-21 19:13:43,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:43,469 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2021-10-21 19:13:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:43,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 127 transitions. [2021-10-21 19:13:43,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-10-21 19:13:43,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 86 states and 127 transitions. [2021-10-21 19:13:43,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2021-10-21 19:13:43,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2021-10-21 19:13:43,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 127 transitions. [2021-10-21 19:13:43,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:43,481 INFO L681 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2021-10-21 19:13:43,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 127 transitions. [2021-10-21 19:13:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-10-21 19:13:43,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 85 states have internal predecessors, (127), 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) [2021-10-21 19:13:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions. [2021-10-21 19:13:43,488 INFO L704 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2021-10-21 19:13:43,488 INFO L587 BuchiCegarLoop]: Abstraction has 86 states and 127 transitions. [2021-10-21 19:13:43,489 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:13:43,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 127 transitions. [2021-10-21 19:13:43,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-10-21 19:13:43,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:43,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:43,492 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:43,492 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:43,492 INFO L791 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 454#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 380#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 381#L214 assume !(1 == ~q_req_up~0); 416#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 417#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 461#L234-1 assume !(0 == ~q_read_ev~0); 449#L267-1 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 378#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 379#L57 assume 1 == ~p_dw_pc~0; 450#L58 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 451#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 423#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 395#L307 assume !(0 != activate_threads_~tmp~1); 396#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 424#L76 assume !(1 == ~c_dr_pc~0); 392#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 391#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 440#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 441#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 418#L315-2 assume !(1 == ~q_read_ev~0); 419#L285-1 assume !(1 == ~q_write_ev~0); 447#L411-1 [2021-10-21 19:13:43,493 INFO L793 eck$LassoCheckResult]: Loop: 447#L411-1 assume !false; 448#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 430#L356 assume !false; 435#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 442#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 376#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 377#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 402#L336 assume !(0 != eval_~tmp___1~0); 403#L372 start_simulation_~kernel_st~0 := 2; 404#L214-2 assume !(1 == ~q_req_up~0); 406#L214-3 start_simulation_~kernel_st~0 := 3; 425#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 432#L267-4 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 397#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 398#L57-3 assume !(1 == ~p_dw_pc~0); 401#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 400#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 439#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 459#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 428#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 385#L76-3 assume !(1 == ~c_dr_pc~0); 386#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 393#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 394#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 458#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 453#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 433#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 434#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 455#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 446#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 415#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 407#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 408#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 421#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 422#L428 assume !(0 != start_simulation_~tmp~4); 447#L411-1 [2021-10-21 19:13:43,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,494 INFO L82 PathProgramCache]: Analyzing trace with hash 434480677, now seen corresponding path program 1 times [2021-10-21 19:13:43,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304514183] [2021-10-21 19:13:43,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304514183] [2021-10-21 19:13:43,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304514183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:13:43,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698598286] [2021-10-21 19:13:43,606 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:43,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,609 INFO L82 PathProgramCache]: Analyzing trace with hash -881751404, now seen corresponding path program 1 times [2021-10-21 19:13:43,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571547367] [2021-10-21 19:13:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571547367] [2021-10-21 19:13:43,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571547367] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:43,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430137117] [2021-10-21 19:13:43,656 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:43,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:43,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:13:43,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:13:43,657 INFO L87 Difference]: Start difference. First operand 86 states and 127 transitions. cyclomatic complexity: 42 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-21 19:13:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:43,788 INFO L93 Difference]: Finished difference Result 177 states and 256 transitions. [2021-10-21 19:13:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:13:43,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 256 transitions. [2021-10-21 19:13:43,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-10-21 19:13:43,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 256 transitions. [2021-10-21 19:13:43,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-21 19:13:43,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-21 19:13:43,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 256 transitions. [2021-10-21 19:13:43,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:43,808 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2021-10-21 19:13:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 256 transitions. [2021-10-21 19:13:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-10-21 19:13:43,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.4463276836158192) internal successors, (256), 176 states have internal predecessors, (256), 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) [2021-10-21 19:13:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2021-10-21 19:13:43,832 INFO L704 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2021-10-21 19:13:43,832 INFO L587 BuchiCegarLoop]: Abstraction has 177 states and 256 transitions. [2021-10-21 19:13:43,832 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:13:43,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 256 transitions. [2021-10-21 19:13:43,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-10-21 19:13:43,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:43,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:43,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:43,836 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:43,836 INFO L791 eck$LassoCheckResult]: Stem: 747#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 741#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 655#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 656#L214 assume !(1 == ~q_req_up~0); 695#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 696#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 748#L234-1 assume !(0 == ~q_read_ev~0); 749#L267-1 assume !(0 == ~q_write_ev~0); 803#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 802#L57 assume 1 == ~p_dw_pc~0; 800#L58 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 797#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 795#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 793#L307 assume !(0 != activate_threads_~tmp~1); 792#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 791#L76 assume !(1 == ~c_dr_pc~0); 790#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 788#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 787#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 786#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 785#L315-2 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 694#L285-1 assume !(1 == ~q_write_ev~0); 731#L411-1 [2021-10-21 19:13:43,836 INFO L793 eck$LassoCheckResult]: Loop: 731#L411-1 assume !false; 732#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 708#L356 assume !false; 724#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 725#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 772#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 754#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 678#L336 assume !(0 != eval_~tmp___1~0); 680#L372 start_simulation_~kernel_st~0 := 2; 730#L214-2 assume !(1 == ~q_req_up~0); 767#L214-3 start_simulation_~kernel_st~0 := 3; 765#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 766#L267-4 assume !(0 == ~q_write_ev~0); 761#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 819#L57-3 assume 1 == ~p_dw_pc~0; 817#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 816#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 815#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 814#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 813#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 812#L76-3 assume !(1 == ~c_dr_pc~0); 810#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 809#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 808#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 807#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 806#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 740#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 711#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 805#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 750#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 692#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 684#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 685#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 698#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 699#L428 assume !(0 != start_simulation_~tmp~4); 731#L411-1 [2021-10-21 19:13:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,837 INFO L82 PathProgramCache]: Analyzing trace with hash -845383063, now seen corresponding path program 1 times [2021-10-21 19:13:43,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718378016] [2021-10-21 19:13:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718378016] [2021-10-21 19:13:43,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718378016] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:13:43,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399827129] [2021-10-21 19:13:43,941 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:43,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:43,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1713700779, now seen corresponding path program 1 times [2021-10-21 19:13:43,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:43,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348209800] [2021-10-21 19:13:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:43,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:43,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:43,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348209800] [2021-10-21 19:13:43,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348209800] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:43,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:43,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:43,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372852963] [2021-10-21 19:13:43,998 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:43,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:43,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:13:43,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:13:43,999 INFO L87 Difference]: Start difference. First operand 177 states and 256 transitions. cyclomatic complexity: 81 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-21 19:13:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:44,105 INFO L93 Difference]: Finished difference Result 582 states and 820 transitions. [2021-10-21 19:13:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:13:44,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 582 states and 820 transitions. [2021-10-21 19:13:44,112 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 550 [2021-10-21 19:13:44,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 582 states to 582 states and 820 transitions. [2021-10-21 19:13:44,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 582 [2021-10-21 19:13:44,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 582 [2021-10-21 19:13:44,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 582 states and 820 transitions. [2021-10-21 19:13:44,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:44,122 INFO L681 BuchiCegarLoop]: Abstraction has 582 states and 820 transitions. [2021-10-21 19:13:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states and 820 transitions. [2021-10-21 19:13:44,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 554. [2021-10-21 19:13:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 554 states have (on average 1.4223826714801444) internal successors, (788), 553 states have internal predecessors, (788), 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) [2021-10-21 19:13:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 788 transitions. [2021-10-21 19:13:44,145 INFO L704 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2021-10-21 19:13:44,145 INFO L587 BuchiCegarLoop]: Abstraction has 554 states and 788 transitions. [2021-10-21 19:13:44,145 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:13:44,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 554 states and 788 transitions. [2021-10-21 19:13:44,150 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 526 [2021-10-21 19:13:44,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:44,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:44,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,152 INFO L791 eck$LassoCheckResult]: Stem: 1520#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 1508#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 1429#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 1430#L214 assume !(1 == ~q_req_up~0); 1463#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 1464#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 1523#L234-1 assume !(0 == ~q_read_ev~0); 1505#L267-1 assume !(0 == ~q_write_ev~0); 1427#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 1428#L57 assume !(1 == ~p_dw_pc~0); 1527#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 1528#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 1472#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 1444#L307 assume !(0 != activate_threads_~tmp~1); 1445#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 1473#L76 assume !(1 == ~c_dr_pc~0); 1441#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 1440#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 1494#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 1495#L315 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 1465#L315-2 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 1466#L285-1 assume !(1 == ~q_write_ev~0); 1524#L411-1 [2021-10-21 19:13:44,153 INFO L793 eck$LassoCheckResult]: Loop: 1524#L411-1 assume !false; 1832#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 1827#L356 assume !false; 1825#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1822#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 1819#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1817#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 1814#L336 assume !(0 != eval_~tmp___1~0); 1815#L372 start_simulation_~kernel_st~0 := 2; 1932#L214-2 assume !(1 == ~q_req_up~0); 1930#L214-3 start_simulation_~kernel_st~0 := 3; 1928#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 1927#L267-4 assume !(0 == ~q_write_ev~0); 1926#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 1923#L57-3 assume !(1 == ~p_dw_pc~0); 1921#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 1919#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 1917#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 1915#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 1913#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 1911#L76-3 assume !(1 == ~c_dr_pc~0); 1896#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 1891#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 1890#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 1889#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 1886#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 1883#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 1879#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 1877#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 1874#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 1872#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 1869#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 1867#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 1862#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 1842#L428 assume !(0 != start_simulation_~tmp~4); 1524#L411-1 [2021-10-21 19:13:44,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2124707798, now seen corresponding path program 1 times [2021-10-21 19:13:44,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346406180] [2021-10-21 19:13:44,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:44,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:44,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346406180] [2021-10-21 19:13:44,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346406180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:44,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:44,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:44,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340527978] [2021-10-21 19:13:44,199 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:44,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1607777558, now seen corresponding path program 1 times [2021-10-21 19:13:44,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483633999] [2021-10-21 19:13:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:44,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:44,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483633999] [2021-10-21 19:13:44,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483633999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:44,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:44,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:44,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245898337] [2021-10-21 19:13:44,295 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:44,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:13:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:13:44,299 INFO L87 Difference]: Start difference. First operand 554 states and 788 transitions. cyclomatic complexity: 238 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-21 19:13:44,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:44,353 INFO L93 Difference]: Finished difference Result 1469 states and 2085 transitions. [2021-10-21 19:13:44,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:13:44,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1469 states and 2085 transitions. [2021-10-21 19:13:44,369 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1424 [2021-10-21 19:13:44,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1469 states to 1469 states and 2085 transitions. [2021-10-21 19:13:44,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1469 [2021-10-21 19:13:44,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1469 [2021-10-21 19:13:44,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1469 states and 2085 transitions. [2021-10-21 19:13:44,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:44,391 INFO L681 BuchiCegarLoop]: Abstraction has 1469 states and 2085 transitions. [2021-10-21 19:13:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states and 2085 transitions. [2021-10-21 19:13:44,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 587. [2021-10-21 19:13:44,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 587 states have (on average 1.3986371379897786) internal successors, (821), 586 states have internal predecessors, (821), 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) [2021-10-21 19:13:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 821 transitions. [2021-10-21 19:13:44,414 INFO L704 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2021-10-21 19:13:44,414 INFO L587 BuchiCegarLoop]: Abstraction has 587 states and 821 transitions. [2021-10-21 19:13:44,414 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:13:44,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 821 transitions. [2021-10-21 19:13:44,418 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 556 [2021-10-21 19:13:44,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:44,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:44,422 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,422 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,424 INFO L791 eck$LassoCheckResult]: Stem: 3554#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 3541#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 3467#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 3468#L214 assume !(1 == ~q_req_up~0); 3501#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 3502#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 3556#L234-1 assume !(0 == ~q_read_ev~0); 3539#L267-1 assume !(0 == ~q_write_ev~0); 3465#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 3466#L57 assume !(1 == ~p_dw_pc~0); 3560#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 3561#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 3509#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 3482#L307 assume !(0 != activate_threads_~tmp~1); 3483#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 3510#L76 assume !(1 == ~c_dr_pc~0); 3479#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 3555#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 3557#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 3547#L315 assume !(0 != activate_threads_~tmp___0~1); 3503#L315-2 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 3504#L285-1 assume !(1 == ~q_write_ev~0); 3537#L411-1 [2021-10-21 19:13:44,424 INFO L793 eck$LassoCheckResult]: Loop: 3537#L411-1 assume !false; 3538#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 3516#L356 assume !false; 3524#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 3531#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 3463#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 3464#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 3487#L336 assume !(0 != eval_~tmp___1~0); 3488#L372 start_simulation_~kernel_st~0 := 2; 3489#L214-2 assume !(1 == ~q_req_up~0); 3490#L214-3 start_simulation_~kernel_st~0 := 3; 3511#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 3518#L267-4 assume !(0 == ~q_write_ev~0); 3480#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 3481#L57-3 assume !(1 == ~p_dw_pc~0); 3546#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 3527#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 3528#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 3553#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 3512#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 3472#L76-3 assume !(1 == ~c_dr_pc~0); 3473#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 4035#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 4033#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 4031#L315-3 assume !(0 != activate_threads_~tmp___0~1); 4029#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 3910#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 3907#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 4028#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 4026#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 4025#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 4024#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 4023#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 4022#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 4021#L428 assume !(0 != start_simulation_~tmp~4); 3537#L411-1 [2021-10-21 19:13:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705876, now seen corresponding path program 1 times [2021-10-21 19:13:44,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070518988] [2021-10-21 19:13:44,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:44,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:44,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070518988] [2021-10-21 19:13:44,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070518988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:44,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:44,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:13:44,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185517275] [2021-10-21 19:13:44,483 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1986125160, now seen corresponding path program 1 times [2021-10-21 19:13:44,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711444488] [2021-10-21 19:13:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:44,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:44,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711444488] [2021-10-21 19:13:44,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711444488] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:44,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:44,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:44,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500064396] [2021-10-21 19:13:44,553 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:44,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:44,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:44,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:44,554 INFO L87 Difference]: Start difference. First operand 587 states and 821 transitions. cyclomatic complexity: 238 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-21 19:13:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:44,585 INFO L93 Difference]: Finished difference Result 821 states and 1132 transitions. [2021-10-21 19:13:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:44,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 821 states and 1132 transitions. [2021-10-21 19:13:44,593 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 791 [2021-10-21 19:13:44,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 821 states to 821 states and 1132 transitions. [2021-10-21 19:13:44,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 821 [2021-10-21 19:13:44,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 821 [2021-10-21 19:13:44,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 821 states and 1132 transitions. [2021-10-21 19:13:44,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:44,609 INFO L681 BuchiCegarLoop]: Abstraction has 821 states and 1132 transitions. [2021-10-21 19:13:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states and 1132 transitions. [2021-10-21 19:13:44,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 546. [2021-10-21 19:13:44,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 546 states have (on average 1.3846153846153846) internal successors, (756), 545 states have internal predecessors, (756), 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) [2021-10-21 19:13:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 756 transitions. [2021-10-21 19:13:44,622 INFO L704 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2021-10-21 19:13:44,622 INFO L587 BuchiCegarLoop]: Abstraction has 546 states and 756 transitions. [2021-10-21 19:13:44,622 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:13:44,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 546 states and 756 transitions. [2021-10-21 19:13:44,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 518 [2021-10-21 19:13:44,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:44,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:44,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,631 INFO L791 eck$LassoCheckResult]: Stem: 4966#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 4957#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 4884#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 4885#L214 assume !(1 == ~q_req_up~0); 4917#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 4918#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 4970#L234-1 assume !(0 == ~q_read_ev~0); 4955#L267-1 assume !(0 == ~q_write_ev~0); 4882#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 4883#L57 assume !(1 == ~p_dw_pc~0); 4973#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 4974#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 4924#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 4899#L307 assume !(0 != activate_threads_~tmp~1); 4900#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 4925#L76 assume !(1 == ~c_dr_pc~0); 4896#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 4969#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 4945#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 4946#L315 assume !(0 != activate_threads_~tmp___0~1); 4919#L315-2 assume !(1 == ~q_read_ev~0); 4920#L285-1 assume !(1 == ~q_write_ev~0); 4971#L411-1 [2021-10-21 19:13:44,632 INFO L793 eck$LassoCheckResult]: Loop: 4971#L411-1 assume !false; 5000#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 4996#L356 assume !false; 4995#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 4993#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 4992#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 4991#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 4989#L336 assume !(0 != eval_~tmp___1~0); 4990#L372 start_simulation_~kernel_st~0 := 2; 5033#L214-2 assume !(1 == ~q_req_up~0); 5032#L214-3 start_simulation_~kernel_st~0 := 3; 5031#L267-2 assume !(0 == ~q_read_ev~0); 5030#L267-4 assume !(0 == ~q_write_ev~0); 5029#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 5028#L57-3 assume !(1 == ~p_dw_pc~0); 5027#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 5026#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 5025#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 5024#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 5023#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 5022#L76-3 assume 1 == ~c_dr_pc~0; 5020#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 5018#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 5016#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 5014#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 5013#L315-5 assume !(1 == ~q_read_ev~0); 5012#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 5011#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 5010#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 5008#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 5007#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 5006#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 5005#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 5004#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 5003#L428 assume !(0 != start_simulation_~tmp~4); 4971#L411-1 [2021-10-21 19:13:44,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,633 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 1 times [2021-10-21 19:13:44,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108598823] [2021-10-21 19:13:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:44,654 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:44,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,701 INFO L82 PathProgramCache]: Analyzing trace with hash -2143806575, now seen corresponding path program 1 times [2021-10-21 19:13:44,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753988425] [2021-10-21 19:13:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:44,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:44,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753988425] [2021-10-21 19:13:44,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753988425] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:44,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:44,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:44,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229332629] [2021-10-21 19:13:44,750 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:44,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:44,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:13:44,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:13:44,751 INFO L87 Difference]: Start difference. First operand 546 states and 756 transitions. cyclomatic complexity: 212 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-21 19:13:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:44,823 INFO L93 Difference]: Finished difference Result 850 states and 1157 transitions. [2021-10-21 19:13:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:13:44,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 850 states and 1157 transitions. [2021-10-21 19:13:44,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 820 [2021-10-21 19:13:44,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 850 states to 850 states and 1157 transitions. [2021-10-21 19:13:44,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 850 [2021-10-21 19:13:44,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 850 [2021-10-21 19:13:44,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 850 states and 1157 transitions. [2021-10-21 19:13:44,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:44,843 INFO L681 BuchiCegarLoop]: Abstraction has 850 states and 1157 transitions. [2021-10-21 19:13:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states and 1157 transitions. [2021-10-21 19:13:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 573. [2021-10-21 19:13:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 573 states have (on average 1.3664921465968587) internal successors, (783), 572 states have internal predecessors, (783), 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) [2021-10-21 19:13:44,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 783 transitions. [2021-10-21 19:13:44,857 INFO L704 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2021-10-21 19:13:44,857 INFO L587 BuchiCegarLoop]: Abstraction has 573 states and 783 transitions. [2021-10-21 19:13:44,857 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:13:44,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 573 states and 783 transitions. [2021-10-21 19:13:44,861 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 545 [2021-10-21 19:13:44,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:44,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:44,863 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,863 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:44,863 INFO L791 eck$LassoCheckResult]: Stem: 6386#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 6373#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 6296#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 6297#L214 assume !(1 == ~q_req_up~0); 6328#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 6329#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 6388#L234-1 assume !(0 == ~q_read_ev~0); 6369#L267-1 assume !(0 == ~q_write_ev~0); 6294#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 6295#L57 assume !(1 == ~p_dw_pc~0); 6394#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 6395#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 6337#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 6311#L307 assume !(0 != activate_threads_~tmp~1); 6312#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 6338#L76 assume !(1 == ~c_dr_pc~0); 6308#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 6387#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 6357#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 6358#L315 assume !(0 != activate_threads_~tmp___0~1); 6330#L315-2 assume !(1 == ~q_read_ev~0); 6331#L285-1 assume !(1 == ~q_write_ev~0); 6389#L411-1 [2021-10-21 19:13:44,863 INFO L793 eck$LassoCheckResult]: Loop: 6389#L411-1 assume !false; 6828#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 6824#L356 assume !false; 6800#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 6796#L247 assume !(0 == ~p_dw_st~0); 6797#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 6798#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 6401#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 6402#L336 assume !(0 != eval_~tmp___1~0); 6366#L372 start_simulation_~kernel_st~0 := 2; 6316#L214-2 assume !(1 == ~q_req_up~0); 6317#L214-3 start_simulation_~kernel_st~0 := 3; 6339#L267-2 assume !(0 == ~q_read_ev~0); 6347#L267-4 assume !(0 == ~q_write_ev~0); 6309#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 6310#L57-3 assume !(1 == ~p_dw_pc~0); 6378#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 6355#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 6356#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 6385#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 6342#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 6301#L76-3 assume !(1 == ~c_dr_pc~0); 6302#L76-5 is_do_read_c_triggered_~__retres1~1 := 0; 6844#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 6842#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 6383#L315-3 assume !(0 != activate_threads_~tmp___0~1); 6384#L315-5 assume !(1 == ~q_read_ev~0); 6840#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 6839#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 6838#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 6836#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 6835#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 6834#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 6833#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 6831#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 6829#L428 assume !(0 != start_simulation_~tmp~4); 6389#L411-1 [2021-10-21 19:13:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,864 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 2 times [2021-10-21 19:13:44,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5905219] [2021-10-21 19:13:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:44,873 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:44,887 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1307787269, now seen corresponding path program 1 times [2021-10-21 19:13:44,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:44,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876765743] [2021-10-21 19:13:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:44,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:44,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:44,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876765743] [2021-10-21 19:13:44,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876765743] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:44,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:44,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:13:44,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363227692] [2021-10-21 19:13:44,958 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:44,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:13:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:13:44,960 INFO L87 Difference]: Start difference. First operand 573 states and 783 transitions. cyclomatic complexity: 212 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2021-10-21 19:13:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:45,020 INFO L93 Difference]: Finished difference Result 995 states and 1367 transitions. [2021-10-21 19:13:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:13:45,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 995 states and 1367 transitions. [2021-10-21 19:13:45,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 967 [2021-10-21 19:13:45,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 995 states to 995 states and 1367 transitions. [2021-10-21 19:13:45,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 995 [2021-10-21 19:13:45,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 995 [2021-10-21 19:13:45,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 995 states and 1367 transitions. [2021-10-21 19:13:45,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:45,043 INFO L681 BuchiCegarLoop]: Abstraction has 995 states and 1367 transitions. [2021-10-21 19:13:45,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states and 1367 transitions. [2021-10-21 19:13:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 579. [2021-10-21 19:13:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 579 states have (on average 1.3488773747841105) internal successors, (781), 578 states have internal predecessors, (781), 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) [2021-10-21 19:13:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 781 transitions. [2021-10-21 19:13:45,059 INFO L704 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2021-10-21 19:13:45,059 INFO L587 BuchiCegarLoop]: Abstraction has 579 states and 781 transitions. [2021-10-21 19:13:45,060 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:13:45,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 579 states and 781 transitions. [2021-10-21 19:13:45,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 551 [2021-10-21 19:13:45,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:45,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:45,065 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,065 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,065 INFO L791 eck$LassoCheckResult]: Stem: 7963#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 7951#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 7877#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 7878#L214 assume !(1 == ~q_req_up~0); 7909#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 7910#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 7966#L234-1 assume !(0 == ~q_read_ev~0); 7946#L267-1 assume !(0 == ~q_write_ev~0); 7875#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 7876#L57 assume !(1 == ~p_dw_pc~0); 7970#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 7971#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 7918#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 7890#L307 assume !(0 != activate_threads_~tmp~1); 7891#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 7919#L76 assume !(1 == ~c_dr_pc~0); 7887#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 7965#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 7936#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 7937#L315 assume !(0 != activate_threads_~tmp___0~1); 7911#L315-2 assume !(1 == ~q_read_ev~0); 7912#L285-1 assume !(1 == ~q_write_ev~0); 7967#L411-1 [2021-10-21 19:13:45,065 INFO L793 eck$LassoCheckResult]: Loop: 7967#L411-1 assume !false; 8260#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 8137#L356 assume !false; 8253#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 8250#L247 assume !(0 == ~p_dw_st~0); 8251#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 8249#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 8246#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 8243#L336 assume !(0 != eval_~tmp___1~0); 8239#L372 start_simulation_~kernel_st~0 := 2; 8233#L214-2 assume !(1 == ~q_req_up~0); 8229#L214-3 start_simulation_~kernel_st~0 := 3; 8227#L267-2 assume !(0 == ~q_read_ev~0); 8224#L267-4 assume !(0 == ~q_write_ev~0); 7892#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 7893#L57-3 assume !(1 == ~p_dw_pc~0); 7969#L57-5 is_do_write_p_triggered_~__retres1~0 := 0; 8296#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 8295#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 8294#L307-3 assume !(0 != activate_threads_~tmp~1); 8293#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 8292#L76-3 assume 1 == ~c_dr_pc~0; 8290#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 8288#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 8286#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 8284#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 8283#L315-5 assume !(1 == ~q_read_ev~0); 8282#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 8281#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 8280#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 8278#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 8277#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 8275#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 8273#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 8272#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 8270#L428 assume !(0 != start_simulation_~tmp~4); 7967#L411-1 [2021-10-21 19:13:45,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2124705814, now seen corresponding path program 3 times [2021-10-21 19:13:45,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98641642] [2021-10-21 19:13:45,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,075 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1768191226, now seen corresponding path program 1 times [2021-10-21 19:13:45,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966763185] [2021-10-21 19:13:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:45,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966763185] [2021-10-21 19:13:45,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966763185] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:13:45,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393389964] [2021-10-21 19:13:45,112 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:45,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:45,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:45,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:45,113 INFO L87 Difference]: Start difference. First operand 579 states and 781 transitions. cyclomatic complexity: 204 Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-10-21 19:13:45,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:45,135 INFO L93 Difference]: Finished difference Result 670 states and 871 transitions. [2021-10-21 19:13:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:45,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 670 states and 871 transitions. [2021-10-21 19:13:45,141 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 633 [2021-10-21 19:13:45,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 670 states to 670 states and 871 transitions. [2021-10-21 19:13:45,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 670 [2021-10-21 19:13:45,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 670 [2021-10-21 19:13:45,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 670 states and 871 transitions. [2021-10-21 19:13:45,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:45,149 INFO L681 BuchiCegarLoop]: Abstraction has 670 states and 871 transitions. [2021-10-21 19:13:45,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states and 871 transitions. [2021-10-21 19:13:45,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 619. [2021-10-21 19:13:45,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 619 states have (on average 1.3037156704361874) internal successors, (807), 618 states have internal predecessors, (807), 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) [2021-10-21 19:13:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 807 transitions. [2021-10-21 19:13:45,164 INFO L704 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2021-10-21 19:13:45,164 INFO L587 BuchiCegarLoop]: Abstraction has 619 states and 807 transitions. [2021-10-21 19:13:45,164 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:13:45,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 807 transitions. [2021-10-21 19:13:45,168 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2021-10-21 19:13:45,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:45,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:45,169 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,170 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,170 INFO L791 eck$LassoCheckResult]: Stem: 9215#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 9207#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 9132#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 9133#L214 assume !(1 == ~q_req_up~0); 9164#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 9165#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 9219#L234-1 assume !(0 == ~q_read_ev~0); 9205#L267-1 assume !(0 == ~q_write_ev~0); 9130#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 9131#L57 assume !(1 == ~p_dw_pc~0); 9222#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 9223#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 9172#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 9144#L307 assume !(0 != activate_threads_~tmp~1); 9145#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 9173#L76 assume !(1 == ~c_dr_pc~0); 9141#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 9218#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 9194#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 9195#L315 assume !(0 != activate_threads_~tmp___0~1); 9166#L315-2 assume !(1 == ~q_read_ev~0); 9167#L285-1 assume !(1 == ~q_write_ev~0); 9220#L411-1 assume !false; 9245#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 9244#L356 assume !false; 9243#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9242#L247 assume !(0 == ~p_dw_st~0); 9168#L251 [2021-10-21 19:13:45,170 INFO L793 eck$LassoCheckResult]: Loop: 9168#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 9169#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 9229#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 9230#L336 assume 0 != eval_~tmp___1~0; 9134#L336-1 assume !(0 == ~p_dw_st~0); 9135#L341 assume !(0 == ~c_dr_st~0); 9180#L356 assume !false; 9188#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 9196#L247 assume !(0 == ~p_dw_st~0); 9168#L251 [2021-10-21 19:13:45,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 1 times [2021-10-21 19:13:45,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700096805] [2021-10-21 19:13:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:45,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700096805] [2021-10-21 19:13:45,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700096805] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:13:45,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216970595] [2021-10-21 19:13:45,194 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,195 INFO L82 PathProgramCache]: Analyzing trace with hash 145107811, now seen corresponding path program 1 times [2021-10-21 19:13:45,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892292061] [2021-10-21 19:13:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:45,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892292061] [2021-10-21 19:13:45,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892292061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:13:45,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445751475] [2021-10-21 19:13:45,233 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:45,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:45,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:13:45,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:13:45,234 INFO L87 Difference]: Start difference. First operand 619 states and 807 transitions. cyclomatic complexity: 190 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:45,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:45,293 INFO L93 Difference]: Finished difference Result 699 states and 887 transitions. [2021-10-21 19:13:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:13:45,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 699 states and 887 transitions. [2021-10-21 19:13:45,299 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 662 [2021-10-21 19:13:45,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 699 states to 699 states and 887 transitions. [2021-10-21 19:13:45,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 699 [2021-10-21 19:13:45,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 699 [2021-10-21 19:13:45,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 699 states and 887 transitions. [2021-10-21 19:13:45,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:45,307 INFO L681 BuchiCegarLoop]: Abstraction has 699 states and 887 transitions. [2021-10-21 19:13:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states and 887 transitions. [2021-10-21 19:13:45,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 619. [2021-10-21 19:13:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 619 states have (on average 1.2907915993537964) internal successors, (799), 618 states have internal predecessors, (799), 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) [2021-10-21 19:13:45,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 799 transitions. [2021-10-21 19:13:45,320 INFO L704 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2021-10-21 19:13:45,320 INFO L587 BuchiCegarLoop]: Abstraction has 619 states and 799 transitions. [2021-10-21 19:13:45,320 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:13:45,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 799 transitions. [2021-10-21 19:13:45,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 582 [2021-10-21 19:13:45,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:45,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:45,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,325 INFO L791 eck$LassoCheckResult]: Stem: 10555#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 10545#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 10465#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 10466#L214 assume !(1 == ~q_req_up~0); 10497#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 10498#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 10559#L234-1 assume !(0 == ~q_read_ev~0); 10542#L267-1 assume !(0 == ~q_write_ev~0); 10463#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 10464#L57 assume !(1 == ~p_dw_pc~0); 10564#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 10565#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 10506#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 10479#L307 assume !(0 != activate_threads_~tmp~1); 10480#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 10507#L76 assume !(1 == ~c_dr_pc~0); 10476#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 10558#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 10528#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 10529#L315 assume !(0 != activate_threads_~tmp___0~1); 10499#L315-2 assume !(1 == ~q_read_ev~0); 10500#L285-1 assume !(1 == ~q_write_ev~0); 10560#L411-1 assume !false; 10591#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 10590#L356 assume !false; 10589#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 10587#L247 assume !(0 == ~p_dw_st~0); 10588#L251 [2021-10-21 19:13:45,325 INFO L793 eck$LassoCheckResult]: Loop: 10588#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 10988#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 10987#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 10986#L336 assume 0 != eval_~tmp___1~0; 10985#L336-1 assume !(0 == ~p_dw_st~0); 10583#L341 assume !(0 == ~c_dr_st~0); 10563#L356 assume !false; 10989#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 10903#L247 assume !(0 == ~p_dw_st~0); 10588#L251 [2021-10-21 19:13:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 2 times [2021-10-21 19:13:45,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751282610] [2021-10-21 19:13:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:45,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751282610] [2021-10-21 19:13:45,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751282610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:13:45,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769182926] [2021-10-21 19:13:45,348 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:45,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,348 INFO L82 PathProgramCache]: Analyzing trace with hash -534950559, now seen corresponding path program 1 times [2021-10-21 19:13:45,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259277750] [2021-10-21 19:13:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:45,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259277750] [2021-10-21 19:13:45,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259277750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:13:45,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716157649] [2021-10-21 19:13:45,360 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:45,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:45,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:45,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:45,361 INFO L87 Difference]: Start difference. First operand 619 states and 799 transitions. cyclomatic complexity: 182 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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) [2021-10-21 19:13:45,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:45,382 INFO L93 Difference]: Finished difference Result 855 states and 1085 transitions. [2021-10-21 19:13:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:45,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1085 transitions. [2021-10-21 19:13:45,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2021-10-21 19:13:45,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1085 transitions. [2021-10-21 19:13:45,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2021-10-21 19:13:45,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2021-10-21 19:13:45,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1085 transitions. [2021-10-21 19:13:45,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:45,398 INFO L681 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2021-10-21 19:13:45,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1085 transitions. [2021-10-21 19:13:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2021-10-21 19:13:45,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 855 states have (on average 1.2690058479532165) internal successors, (1085), 854 states have internal predecessors, (1085), 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) [2021-10-21 19:13:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1085 transitions. [2021-10-21 19:13:45,415 INFO L704 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2021-10-21 19:13:45,416 INFO L587 BuchiCegarLoop]: Abstraction has 855 states and 1085 transitions. [2021-10-21 19:13:45,416 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:13:45,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1085 transitions. [2021-10-21 19:13:45,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2021-10-21 19:13:45,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:45,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:45,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,422 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,422 INFO L791 eck$LassoCheckResult]: Stem: 12033#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 12023#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 11946#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 11947#L214 assume !(1 == ~q_req_up~0); 11977#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 11978#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 12037#L234-1 assume !(0 == ~q_read_ev~0); 12021#L267-1 assume !(0 == ~q_write_ev~0); 11944#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 11945#L57 assume !(1 == ~p_dw_pc~0); 12041#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 12042#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 11985#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 11958#L307 assume !(0 != activate_threads_~tmp~1); 11959#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 11986#L76 assume !(1 == ~c_dr_pc~0); 11955#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 12036#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 12008#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 12009#L315 assume !(0 != activate_threads_~tmp___0~1); 11979#L315-2 assume !(1 == ~q_read_ev~0); 11980#L285-1 assume !(1 == ~q_write_ev~0); 12038#L411-1 assume !false; 12415#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 12414#L356 assume !false; 12412#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 12264#L247 assume !(0 == ~p_dw_st~0); 12265#L251 [2021-10-21 19:13:45,422 INFO L793 eck$LassoCheckResult]: Loop: 12265#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 12266#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 12259#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 12213#L336 assume 0 != eval_~tmp___1~0; 12179#L336-1 assume !(0 == ~p_dw_st~0); 12177#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 12175#L360 assume !(0 != eval_~tmp___0~2); 12176#L356 assume !false; 12295#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 12269#L247 assume !(0 == ~p_dw_st~0); 12265#L251 [2021-10-21 19:13:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1163376516, now seen corresponding path program 3 times [2021-10-21 19:13:45,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859223584] [2021-10-21 19:13:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:45,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859223584] [2021-10-21 19:13:45,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859223584] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:13:45,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894978263] [2021-10-21 19:13:45,444 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:45,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,444 INFO L82 PathProgramCache]: Analyzing trace with hash 545725425, now seen corresponding path program 1 times [2021-10-21 19:13:45,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119503948] [2021-10-21 19:13:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,448 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:45,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:45,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:45,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:45,552 INFO L87 Difference]: Start difference. First operand 855 states and 1085 transitions. cyclomatic complexity: 232 Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-10-21 19:13:45,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:45,587 INFO L93 Difference]: Finished difference Result 855 states and 1059 transitions. [2021-10-21 19:13:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:45,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 855 states and 1059 transitions. [2021-10-21 19:13:45,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2021-10-21 19:13:45,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 855 states to 855 states and 1059 transitions. [2021-10-21 19:13:45,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 855 [2021-10-21 19:13:45,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 855 [2021-10-21 19:13:45,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 855 states and 1059 transitions. [2021-10-21 19:13:45,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:45,603 INFO L681 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2021-10-21 19:13:45,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states and 1059 transitions. [2021-10-21 19:13:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2021-10-21 19:13:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 855 states have (on average 1.2385964912280703) internal successors, (1059), 854 states have internal predecessors, (1059), 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) [2021-10-21 19:13:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1059 transitions. [2021-10-21 19:13:45,664 INFO L704 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2021-10-21 19:13:45,664 INFO L587 BuchiCegarLoop]: Abstraction has 855 states and 1059 transitions. [2021-10-21 19:13:45,664 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 19:13:45,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 855 states and 1059 transitions. [2021-10-21 19:13:45,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 818 [2021-10-21 19:13:45,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:45,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:45,670 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,670 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,671 INFO L791 eck$LassoCheckResult]: Stem: 13748#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 13739#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 13662#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 13663#L214 assume !(1 == ~q_req_up~0); 13693#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 13694#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 13752#L234-1 assume !(0 == ~q_read_ev~0); 13735#L267-1 assume !(0 == ~q_write_ev~0); 13660#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 13661#L57 assume !(1 == ~p_dw_pc~0); 13756#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 13757#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 13701#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 13674#L307 assume !(0 != activate_threads_~tmp~1); 13675#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 13702#L76 assume !(1 == ~c_dr_pc~0); 13671#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 13751#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 13722#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 13723#L315 assume !(0 != activate_threads_~tmp___0~1); 13695#L315-2 assume !(1 == ~q_read_ev~0); 13696#L285-1 assume !(1 == ~q_write_ev~0); 13753#L411-1 assume !false; 14341#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 14340#L356 assume !false; 14339#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 14338#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 14336#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 14334#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 14332#L336 assume 0 != eval_~tmp___1~0; 14330#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 14328#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 14300#L120 assume 0 == ~p_dw_pc~0; 14299#L131-1 [2021-10-21 19:13:45,671 INFO L793 eck$LassoCheckResult]: Loop: 14299#L131-1 assume !false; 14295#L132 assume !(0 == ~q_free~0); 13718#L133 ~q_buf_0~0 := do_write_p_#t~nondet9;havoc do_write_p_#t~nondet9;~p_last_write~0 := ~q_buf_0~0;~p_num_write~0 := 1 + ~p_num_write~0;~q_free~0 := 0;~q_req_up~0 := 1; 13719#L131-1 assume !false; 14364#L132 assume 0 == ~q_free~0;~p_dw_st~0 := 2;~p_dw_pc~0 := 1; 13716#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 13708#L360 assume 0 != eval_~tmp___0~2;~c_dr_st~0 := 1;havoc do_read_c_~a~0;havoc do_read_c_~a~0; 13687#L161 assume 0 == ~c_dr_pc~0; 13688#L13-2 assume !false; 13742#L173 assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 1;~a_t~0 := do_read_c_~a~0; 13758#L356 assume !false; 14360#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 14358#L247 assume !(0 == ~p_dw_st~0); 14357#L251 assume !(0 == ~c_dr_st~0);exists_runnable_thread_~__retres1~2 := 0; 14355#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 14354#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 14353#L336 assume !(0 != eval_~tmp___1~0); 13731#L372 start_simulation_~kernel_st~0 := 2; 13732#L214-2 assume 1 == ~q_req_up~0; 13769#L27-3 assume 0 == ~q_free~0;~q_write_ev~0 := 0; 14184#L27-5 assume 1 == ~q_free~0;~q_read_ev~0 := 0; 14181#L32-3 ~q_ev~0 := 0;~q_req_up~0 := 0; 14177#L214-3 start_simulation_~kernel_st~0 := 3; 14173#L267-2 assume 0 == ~q_read_ev~0;~q_read_ev~0 := 1; 14168#L267-4 assume 0 == ~q_write_ev~0;~q_write_ev~0 := 1; 14164#L272-3 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 14159#L57-3 assume 1 == ~p_dw_pc~0; 14154#L58-1 assume 1 == ~q_read_ev~0;is_do_write_p_triggered_~__retres1~0 := 1; 14151#L68-1 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 14147#L69-1 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 14142#L307-3 assume 0 != activate_threads_~tmp~1;~p_dw_st~0 := 0; 14139#L307-5 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 14136#L76-3 assume 1 == ~c_dr_pc~0; 14132#L77-1 assume 1 == ~q_write_ev~0;is_do_read_c_triggered_~__retres1~1 := 1; 14129#L87-1 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 14127#L88-1 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 14124#L315-3 assume 0 != activate_threads_~tmp___0~1;~c_dr_st~0 := 0; 14120#L315-5 assume 1 == ~q_read_ev~0;~q_read_ev~0 := 2; 14121#L285-3 assume 1 == ~q_write_ev~0;~q_write_ev~0 := 2; 14337#L290-3 havoc stop_simulation_#res;havoc stop_simulation_#t~ret15, stop_simulation_~tmp~3, stop_simulation_~__retres2~0;havoc stop_simulation_~tmp~3;havoc stop_simulation_~__retres2~0;havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 14335#L247-1 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 14333#L259-1 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 14331#L260-1 stop_simulation_#t~ret15 := exists_runnable_thread_#res;stop_simulation_~tmp~3 := stop_simulation_#t~ret15;havoc stop_simulation_#t~ret15; 14329#L386 assume 0 != stop_simulation_~tmp~3;stop_simulation_~__retres2~0 := 0; 14327#L393 stop_simulation_#res := stop_simulation_~__retres2~0; 14326#L394 start_simulation_#t~ret16 := stop_simulation_#res;start_simulation_~tmp~4 := start_simulation_#t~ret16;havoc start_simulation_#t~ret16; 14324#L428 assume !(0 != start_simulation_~tmp~4); 14322#L411-1 assume !false; 14320#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 14318#L356 assume !false; 14316#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 14314#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 14312#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 14310#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 14308#L336 assume 0 != eval_~tmp___1~0; 14307#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 14305#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 14303#L120 assume 0 == ~p_dw_pc~0; 14299#L131-1 [2021-10-21 19:13:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,672 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 1 times [2021-10-21 19:13:45,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534808227] [2021-10-21 19:13:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,694 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,721 INFO L82 PathProgramCache]: Analyzing trace with hash 640694518, now seen corresponding path program 1 times [2021-10-21 19:13:45,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102425577] [2021-10-21 19:13:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:13:45,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:45,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102425577] [2021-10-21 19:13:45,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102425577] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:45,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:45,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:13:45,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639568112] [2021-10-21 19:13:45,757 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:13:45,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:45,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:13:45,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:13:45,758 INFO L87 Difference]: Start difference. First operand 855 states and 1059 transitions. cyclomatic complexity: 206 Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-10-21 19:13:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:45,795 INFO L93 Difference]: Finished difference Result 1641 states and 2015 transitions. [2021-10-21 19:13:45,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:13:45,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1641 states and 2015 transitions. [2021-10-21 19:13:45,807 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1564 [2021-10-21 19:13:45,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1641 states to 1641 states and 2015 transitions. [2021-10-21 19:13:45,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1641 [2021-10-21 19:13:45,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1641 [2021-10-21 19:13:45,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1641 states and 2015 transitions. [2021-10-21 19:13:45,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:45,823 INFO L681 BuchiCegarLoop]: Abstraction has 1641 states and 2015 transitions. [2021-10-21 19:13:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states and 2015 transitions. [2021-10-21 19:13:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1266. [2021-10-21 19:13:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1266 states have (on average 1.2298578199052133) internal successors, (1557), 1265 states have internal predecessors, (1557), 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) [2021-10-21 19:13:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1557 transitions. [2021-10-21 19:13:45,870 INFO L704 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2021-10-21 19:13:45,870 INFO L587 BuchiCegarLoop]: Abstraction has 1266 states and 1557 transitions. [2021-10-21 19:13:45,870 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 19:13:45,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1266 states and 1557 transitions. [2021-10-21 19:13:45,877 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2021-10-21 19:13:45,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:45,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:45,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:45,878 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:13:45,878 INFO L791 eck$LassoCheckResult]: Stem: 16259#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 16245#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 16164#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 16165#L214 assume !(1 == ~q_req_up~0); 16195#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 16196#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 16262#L234-1 assume !(0 == ~q_read_ev~0); 16242#L267-1 assume !(0 == ~q_write_ev~0); 16162#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 16163#L57 assume !(1 == ~p_dw_pc~0); 16267#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 16268#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 16203#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 16176#L307 assume !(0 != activate_threads_~tmp~1); 16177#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 16204#L76 assume !(1 == ~c_dr_pc~0); 16173#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 16261#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 16229#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 16230#L315 assume !(0 != activate_threads_~tmp___0~1); 16197#L315-2 assume !(1 == ~q_read_ev~0); 16198#L285-1 assume !(1 == ~q_write_ev~0); 16263#L411-1 assume !false; 17143#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 17141#L356 assume !false; 17139#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 17137#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 17135#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 17133#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 17131#L336 assume 0 != eval_~tmp___1~0; 17129#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 16260#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 16253#L120 assume 0 == ~p_dw_pc~0; 16226#L131-1 [2021-10-21 19:13:45,878 INFO L793 eck$LassoCheckResult]: Loop: 16226#L131-1 assume !false; 16235#L132 assume !(0 == ~q_free~0); 16225#L133 ~q_buf_0~0 := do_write_p_#t~nondet9;havoc do_write_p_#t~nondet9;~p_last_write~0 := ~q_buf_0~0;~p_num_write~0 := 1 + ~p_num_write~0;~q_free~0 := 0;~q_req_up~0 := 1; 16226#L131-1 [2021-10-21 19:13:45,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,880 INFO L82 PathProgramCache]: Analyzing trace with hash 316097349, now seen corresponding path program 2 times [2021-10-21 19:13:45,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982146420] [2021-10-21 19:13:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,891 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:45,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,922 INFO L82 PathProgramCache]: Analyzing trace with hash 206771, now seen corresponding path program 1 times [2021-10-21 19:13:45,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670915139] [2021-10-21 19:13:45,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,928 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:45,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:45,935 INFO L82 PathProgramCache]: Analyzing trace with hash -2006979089, now seen corresponding path program 1 times [2021-10-21 19:13:45,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:45,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730099761] [2021-10-21 19:13:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:45,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,946 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:45,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:46,010 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:46,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:46,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:46,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:46,011 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:13:46,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:46,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:46,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2021-10-21 19:13:46,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:46,011 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:46,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:46,131 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:13:46,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:46,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:46,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:13:46,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:46,169 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~q_buf_0~0=0, ~p_last_write~0=0, ULTIMATE.start_do_write_p_#t~nondet9=0} Honda state: {~q_buf_0~0=0, ~p_last_write~0=0, ULTIMATE.start_do_write_p_#t~nondet9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:46,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,210 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:13:46,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:46,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:46,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:46,223 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~q_req_up~0=1} Honda state: {~q_req_up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:46,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,261 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:46,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:46,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:13:46,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:13:46,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:46,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:13:46,377 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:46,377 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~p_num_write~0=0} Honda state: {~p_num_write~0=0} Generalized eigenvectors: [{~p_num_write~0=-1}, {~p_num_write~0=-5}, {~p_num_write~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] [2021-10-21 19:13:46,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:13:46,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:46,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:46,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:13:46,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:46,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:13:46,553 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:13:46,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,560 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:46,560 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:46,560 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:46,560 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:46,560 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:13:46,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:46,561 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:46,561 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Loop [2021-10-21 19:13:46,561 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:46,561 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:46,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:46,635 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:46,640 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:13:46,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,642 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,651 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 [2021-10-21 19:13:46,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:46,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:46,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:46,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:46,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:46,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:46,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:46,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:13:46,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:46,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,720 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,726 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 [2021-10-21 19:13:46,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:46,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:46,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:46,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:46,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:46,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:46,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:46,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:13:46,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:46,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,789 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,795 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 [2021-10-21 19:13:46,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:46,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:46,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:46,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:46,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:46,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:46,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:46,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:13:46,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:46,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,869 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 [2021-10-21 19:13:46,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:46,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:46,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:46,878 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:46,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:46,880 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:46,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:46,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:13:46,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:46,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:46,937 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 19:13:46,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:46,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:46,939 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:46,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:13:46,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:46,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:46,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:46,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:46,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:46,956 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:46,959 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:46,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:46,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,011 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,016 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 [2021-10-21 19:13:47,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,027 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:47,028 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:47,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:13:47,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:13:47,084 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 [2021-10-21 19:13:47,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,092 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:47,093 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:47,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-21 19:13:47,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,117 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:13:47,118 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 [2021-10-21 19:13:47,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,126 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:47,126 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:47,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:47,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,199 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 19:13:47,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,202 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,210 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 [2021-10-21 19:13:47,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,220 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:47,223 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:47,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:13:47,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,280 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,285 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 [2021-10-21 19:13:47,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,294 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:47,296 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:47,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:13:47,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,356 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,361 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 [2021-10-21 19:13:47,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:13:47,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,369 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:47,372 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:47,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,402 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,433 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 [2021-10-21 19:13:47,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:13:47,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,441 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:47,441 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:47,446 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 19:13:47,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,507 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 19:13:47,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,508 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,520 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 [2021-10-21 19:13:47,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,531 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:47,535 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:13:47,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:13:47,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,598 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:47,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,617 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:47,619 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:13:47,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:13:47,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,667 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,669 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 [2021-10-21 19:13:47,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,679 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:47,681 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:13:47,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:13:47,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,723 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:13:47,725 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 [2021-10-21 19:13:47,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:47,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,732 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:47,733 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:47,735 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2021-10-21 19:13:47,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,798 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 19:13:47,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,799 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,805 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 [2021-10-21 19:13:47,814 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:47,814 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:47,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,815 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:47,817 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:47,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:13:47,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,867 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,869 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 [2021-10-21 19:13:47,878 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:47,878 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:47,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,878 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:47,880 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:47,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:13:47,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,934 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:47,936 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 [2021-10-21 19:13:47,945 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:47,945 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:47,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:47,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:47,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:47,945 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:47,947 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:47,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:47,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:13:47,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:47,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:47,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:47,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:47,998 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,003 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 [2021-10-21 19:13:48,012 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,012 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:48,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,012 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:48,012 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:48,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:48,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:13:48,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,073 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 19:13:48,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,074 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,075 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 [2021-10-21 19:13:48,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:13:48,083 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,083 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:13:48,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,084 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,087 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:48,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,134 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:13:48,136 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 [2021-10-21 19:13:48,143 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,143 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:13:48,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,144 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,145 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:48,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-21 19:13:48,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,169 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:13:48,170 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 [2021-10-21 19:13:48,179 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,179 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:13:48,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,180 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,181 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:48,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-21 19:13:48,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,219 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,220 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 [2021-10-21 19:13:48,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:13:48,228 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,228 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:13:48,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,228 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:48,228 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,231 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 19:13:48,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,267 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 19:13:48,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,269 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:13:48,272 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 [2021-10-21 19:13:48,279 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,279 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:48,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,280 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:48,294 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:13:48,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,418 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,439 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 [2021-10-21 19:13:48,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:13:48,447 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,447 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:48,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,447 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:48,450 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:13:48,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,502 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,504 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 [2021-10-21 19:13:48,513 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,513 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:48,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,514 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:48,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:13:48,516 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:13:48,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,566 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,571 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 [2021-10-21 19:13:48,581 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,581 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:48,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,581 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:48,581 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:13:48,585 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2021-10-21 19:13:48,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:13:48,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,646 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 19:13:48,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,647 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,650 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 [2021-10-21 19:13:48,659 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,660 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:48,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,660 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,663 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:48,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:13:48,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,714 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,719 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 [2021-10-21 19:13:48,728 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,728 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:48,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,729 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,730 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:48,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:13:48,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,787 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,790 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 [2021-10-21 19:13:48,799 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,799 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:48,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,799 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,800 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:48,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:13:48,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-21 19:13:48,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,842 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:13:48,844 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 [2021-10-21 19:13:48,851 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,851 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:13:48,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,851 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:48,851 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:13:48,853 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 19:13:48,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,894 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 19:13:48,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,895 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,897 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 [2021-10-21 19:13:48,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:13:48,905 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,905 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:48,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,905 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:13:48,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:48,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:48,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:48,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:48,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:48,957 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:48,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:13:48,971 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 [2021-10-21 19:13:48,980 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:48,981 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:48,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:48,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:48,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:48,981 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:13:48,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:48,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:48,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:49,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:49,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:49,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:49,034 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:49,046 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 [2021-10-21 19:13:49,055 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:49,055 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:49,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:49,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:49,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:49,056 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:13:49,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:49,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:49,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:13:49,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:49,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:49,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:49,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:49,119 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:49,120 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 [2021-10-21 19:13:49,129 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:13:49,130 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:13:49,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:49,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:49,130 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:49,130 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:13:49,133 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:13:49,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:49,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:13:49,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:49,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:50,164 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:50,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:50,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:50,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:50,164 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:13:50,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:50,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:50,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: pc_sfifo_2.cil-2.c_Iteration14_Lasso [2021-10-21 19:13:50,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:50,165 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:50,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:50,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:50,694 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:13:50,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,699 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,701 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 [2021-10-21 19:13:50,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:50,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:50,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:50,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:13:50,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:50,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 19:13:50,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,746 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:13:50,747 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 [2021-10-21 19:13:50,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:50,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:50,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:50,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:50,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,777 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:13:50,781 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 [2021-10-21 19:13:50,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:50,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:50,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:50,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:50,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-21 19:13:50,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,813 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:13:50,815 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 [2021-10-21 19:13:50,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:50,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:50,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:50,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:50,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-21 19:13:50,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,895 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 19:13:50,896 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 [2021-10-21 19:13:50,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,904 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:50,904 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:50,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:50,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-21 19:13:50,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,944 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 19:13:50,945 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 [2021-10-21 19:13:50,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:50,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:50,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:50,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:50,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-21 19:13:50,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:50,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:50,973 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:50,975 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 [2021-10-21 19:13:50,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 19:13:50,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:50,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:50,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:50,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:50,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:50,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:50,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-21 19:13:51,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,017 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 19:13:51,034 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 [2021-10-21 19:13:51,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-21 19:13:51,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,065 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 19:13:51,066 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 [2021-10-21 19:13:51,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-21 19:13:51,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,099 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 19:13:51,100 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 [2021-10-21 19:13:51,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-21 19:13:51,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,131 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 19:13:51,132 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 [2021-10-21 19:13:51,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,205 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,216 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 [2021-10-21 19:13:51,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 19:13:51,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,277 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,283 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 [2021-10-21 19:13:51,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 19:13:51,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-21 19:13:51,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,318 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 19:13:51,319 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 [2021-10-21 19:13:51,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-21 19:13:51,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,350 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 19:13:51,358 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 [2021-10-21 19:13:51,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,391 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 19:13:51,392 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 [2021-10-21 19:13:51,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-21 19:13:51,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,462 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 19:13:51,463 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 [2021-10-21 19:13:51,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,524 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 19:13:51,525 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 [2021-10-21 19:13:51,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:51,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:51,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:51,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,553 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 19:13:51,555 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 [2021-10-21 19:13:51,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:51,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:51,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:51,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-21 19:13:51,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,583 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 19:13:51,584 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 [2021-10-21 19:13:51,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-21 19:13:51,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,616 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 19:13:51,617 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 [2021-10-21 19:13:51,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,683 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 19:13:51,684 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 [2021-10-21 19:13:51,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:51,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:51,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:51,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,732 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 19:13:51,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:51,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,790 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,791 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 [2021-10-21 19:13:51,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 19:13:51,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,822 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 19:13:51,824 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 [2021-10-21 19:13:51,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:51,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,862 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 19:13:51,863 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 [2021-10-21 19:13:51,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:51,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-21 19:13:51,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:51,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:51,941 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:51,947 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 [2021-10-21 19:13:51,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:51,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:51,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:51,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:51,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:51,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:51,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 19:13:51,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,020 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,022 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 [2021-10-21 19:13:52,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:52,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:52,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 19:13:52,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,087 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,092 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 [2021-10-21 19:13:52,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 19:13:52,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:52,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:52,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,170 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,175 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 [2021-10-21 19:13:52,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:52,186 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:52,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 19:13:52,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,234 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,236 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 [2021-10-21 19:13:52,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:52,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:52,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 19:13:52,270 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,301 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,303 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 [2021-10-21 19:13:52,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:52,314 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:52,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-21 19:13:52,326 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,360 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,361 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 [2021-10-21 19:13:52,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:52,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:52,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-21 19:13:52,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,418 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,420 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 [2021-10-21 19:13:52,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:52,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:52,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:52,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:52,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-21 19:13:52,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:52,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,476 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,478 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 [2021-10-21 19:13:52,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-21 19:13:52,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:52,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:52,487 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:52,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:52,491 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-21 19:13:52,491 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:13:52,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:13:52,582 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-21 19:13:52,583 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-21 19:13:52,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:52,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:52,586 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:52,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:13:52,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-21 19:13:52,616 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-21 19:13:52,616 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:13:52,617 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~q_free~0) = 1*~q_free~0 Supporting invariants [1*~q_free~0 >= 0] [2021-10-21 19:13:52,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:52,674 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-10-21 19:13:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:52,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:13:52,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:52,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:13:52,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:53,031 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 19:13:53,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1266 states and 1557 transitions. cyclomatic complexity: 295 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2021-10-21 19:13:53,140 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1266 states and 1557 transitions. cyclomatic complexity: 295. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 1304 states and 1603 transitions. Complement of second has 8 states. [2021-10-21 19:13:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:53,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2021-10-21 19:13:53,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2021-10-21 19:13:53,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 3 letters. [2021-10-21 19:13:53,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:53,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 36 letters. Loop has 3 letters. [2021-10-21 19:13:53,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:53,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 33 letters. Loop has 6 letters. [2021-10-21 19:13:53,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:53,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1304 states and 1603 transitions. [2021-10-21 19:13:53,157 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1233 [2021-10-21 19:13:53,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1304 states to 1287 states and 1583 transitions. [2021-10-21 19:13:53,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1283 [2021-10-21 19:13:53,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1284 [2021-10-21 19:13:53,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1287 states and 1583 transitions. [2021-10-21 19:13:53,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:13:53,168 INFO L681 BuchiCegarLoop]: Abstraction has 1287 states and 1583 transitions. [2021-10-21 19:13:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states and 1583 transitions. [2021-10-21 19:13:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1271. [2021-10-21 19:13:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1271 states have (on average 1.2305271439811172) internal successors, (1564), 1270 states have internal predecessors, (1564), 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) [2021-10-21 19:13:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1564 transitions. [2021-10-21 19:13:53,196 INFO L704 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2021-10-21 19:13:53,196 INFO L587 BuchiCegarLoop]: Abstraction has 1271 states and 1564 transitions. [2021-10-21 19:13:53,196 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-21 19:13:53,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1271 states and 1564 transitions. [2021-10-21 19:13:53,204 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 1223 [2021-10-21 19:13:53,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:53,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:53,205 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:53,205 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:53,205 INFO L791 eck$LassoCheckResult]: Stem: 19000#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 18988#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 18907#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 18908#L214 assume !(1 == ~q_req_up~0); 18939#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 18940#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 19004#L234-1 assume !(0 == ~q_read_ev~0); 18983#L267-1 assume !(0 == ~q_write_ev~0); 18905#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 18906#L57 assume !(1 == ~p_dw_pc~0); 19010#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 19011#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 18947#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 18921#L307 assume !(0 != activate_threads_~tmp~1); 18922#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 18948#L76 assume !(1 == ~c_dr_pc~0); 18918#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 19003#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 18968#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 18969#L315 assume !(0 != activate_threads_~tmp___0~1); 18941#L315-2 assume !(1 == ~q_read_ev~0); 18942#L285-1 assume !(1 == ~q_write_ev~0); 19005#L411-1 assume !false; 19031#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 19030#L356 assume !false; 19029#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 19028#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 19027#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 19026#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 19025#L336 assume 0 != eval_~tmp___1~0; 19024#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 19023#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 19022#L120 assume 0 == ~p_dw_pc~0; 19021#L131-1 assume !false; 18977#L132 assume 0 == ~q_free~0;~p_dw_st~0 := 2;~p_dw_pc~0 := 1; 19012#L341 [2021-10-21 19:13:53,206 INFO L793 eck$LassoCheckResult]: Loop: 19012#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 19133#L360 assume !(0 != eval_~tmp___0~2); 19707#L356 assume !false; 19725#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 19724#L247 assume !(0 == ~p_dw_st~0); 19723#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 19122#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 19722#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 19721#L336 assume 0 != eval_~tmp___1~0; 19712#L336-1 assume !(0 == ~p_dw_st~0); 19012#L341 [2021-10-21 19:13:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1173119927, now seen corresponding path program 1 times [2021-10-21 19:13:53,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:53,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383380422] [2021-10-21 19:13:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:53,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:53,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:13:53,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383380422] [2021-10-21 19:13:53,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383380422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:13:53,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:13:53,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:13:53,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795465020] [2021-10-21 19:13:53,271 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:13:53,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:53,272 INFO L82 PathProgramCache]: Analyzing trace with hash -474460271, now seen corresponding path program 2 times [2021-10-21 19:13:53,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:53,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542403096] [2021-10-21 19:13:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:53,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,277 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:53,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:13:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:13:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:13:53,333 INFO L87 Difference]: Start difference. First operand 1271 states and 1564 transitions. cyclomatic complexity: 298 Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-10-21 19:13:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:13:53,406 INFO L93 Difference]: Finished difference Result 2343 states and 2843 transitions. [2021-10-21 19:13:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:13:53,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2343 states and 2843 transitions. [2021-10-21 19:13:53,419 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 2172 [2021-10-21 19:13:53,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2343 states to 2342 states and 2842 transitions. [2021-10-21 19:13:53,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2337 [2021-10-21 19:13:53,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2337 [2021-10-21 19:13:53,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2342 states and 2842 transitions. [2021-10-21 19:13:53,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:13:53,496 INFO L681 BuchiCegarLoop]: Abstraction has 2342 states and 2842 transitions. [2021-10-21 19:13:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states and 2842 transitions. [2021-10-21 19:13:53,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-21 19:13:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1697. [2021-10-21 19:13:53,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1697 states have (on average 1.2233352975839717) internal successors, (2076), 1696 states have internal predecessors, (2076), 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) [2021-10-21 19:13:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2076 transitions. [2021-10-21 19:13:53,550 INFO L704 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2021-10-21 19:13:53,550 INFO L587 BuchiCegarLoop]: Abstraction has 1697 states and 2076 transitions. [2021-10-21 19:13:53,550 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-21 19:13:53,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1697 states and 2076 transitions. [2021-10-21 19:13:53,557 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1605 [2021-10-21 19:13:53,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:53,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:53,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:53,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:53,562 INFO L791 eck$LassoCheckResult]: Stem: 22626#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~q_buf_0~0 := 0;~q_free~0 := 0;~q_read_ev~0 := 0;~q_write_ev~0 := 0;~q_req_up~0 := 0;~q_ev~0 := 0;~p_num_write~0 := 0;~p_last_write~0 := 0;~p_dw_st~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 0;~c_num_read~0 := 0;~c_last_read~0 := 0;~c_dr_st~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 0;~a_t~0 := 0; 22609#L-1 havoc main_#res;havoc main_~__retres1~3;havoc main_~__retres1~3;~q_free~0 := 1;~q_write_ev~0 := 2;~q_read_ev~0 := ~q_write_ev~0;~p_num_write~0 := 0;~p_dw_pc~0 := 0;~p_dw_i~0 := 1;~c_num_read~0 := 0;~c_dr_pc~0 := 0;~c_dr_i~0 := 1; 22531#L454 havoc start_simulation_#t~ret16, start_simulation_~kernel_st~0, start_simulation_~tmp~4;havoc start_simulation_~kernel_st~0;havoc start_simulation_~tmp~4;start_simulation_~kernel_st~0 := 0; 22532#L214 assume !(1 == ~q_req_up~0); 22562#L214-1 assume 1 == ~p_dw_i~0;~p_dw_st~0 := 0; 22563#L229-1 assume 1 == ~c_dr_i~0;~c_dr_st~0 := 0; 22628#L234-1 assume !(0 == ~q_read_ev~0); 22605#L267-1 assume !(0 == ~q_write_ev~0); 22529#L272-1 havoc activate_threads_#t~ret10, activate_threads_#t~ret11, activate_threads_~tmp~1, activate_threads_~tmp___0~1;havoc activate_threads_~tmp~1;havoc activate_threads_~tmp___0~1;havoc is_do_write_p_triggered_#res;havoc is_do_write_p_triggered_~__retres1~0;havoc is_do_write_p_triggered_~__retres1~0; 22530#L57 assume !(1 == ~p_dw_pc~0); 22633#L57-2 is_do_write_p_triggered_~__retres1~0 := 0; 22634#L68 is_do_write_p_triggered_#res := is_do_write_p_triggered_~__retres1~0; 22570#L69 activate_threads_#t~ret10 := is_do_write_p_triggered_#res;activate_threads_~tmp~1 := activate_threads_#t~ret10;havoc activate_threads_#t~ret10; 22545#L307 assume !(0 != activate_threads_~tmp~1); 22546#L307-2 havoc is_do_read_c_triggered_#res;havoc is_do_read_c_triggered_~__retres1~1;havoc is_do_read_c_triggered_~__retres1~1; 22571#L76 assume !(1 == ~c_dr_pc~0); 22542#L76-2 is_do_read_c_triggered_~__retres1~1 := 0; 22627#L87 is_do_read_c_triggered_#res := is_do_read_c_triggered_~__retres1~1; 22591#L88 activate_threads_#t~ret11 := is_do_read_c_triggered_#res;activate_threads_~tmp___0~1 := activate_threads_#t~ret11;havoc activate_threads_#t~ret11; 22592#L315 assume !(0 != activate_threads_~tmp___0~1); 22564#L315-2 assume !(1 == ~q_read_ev~0); 22565#L285-1 assume !(1 == ~q_write_ev~0); 22629#L411-1 assume !false; 22656#L412 start_simulation_~kernel_st~0 := 1;havoc eval_#t~ret12, eval_#t~nondet13, eval_#t~nondet14, eval_~tmp~2, eval_~tmp___0~2, eval_~tmp___1~0;havoc eval_~tmp~2;havoc eval_~tmp___0~2;havoc eval_~tmp___1~0; 22655#L356 assume !false; 22654#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 22653#L247 assume 0 == ~p_dw_st~0;exists_runnable_thread_~__retres1~2 := 1; 22652#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 22651#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 22650#L336 assume 0 != eval_~tmp___1~0; 22649#L336-1 assume 0 == ~p_dw_st~0;eval_~tmp~2 := eval_#t~nondet13;havoc eval_#t~nondet13; 22648#L345 assume 0 != eval_~tmp~2;~p_dw_st~0 := 1;havoc do_write_p_#t~nondet9; 22647#L120 assume 0 == ~p_dw_pc~0; 22646#L131-1 assume !false; 22598#L132 assume !(0 == ~q_free~0); 22613#L133 ~q_buf_0~0 := do_write_p_#t~nondet9;havoc do_write_p_#t~nondet9;~p_last_write~0 := ~q_buf_0~0;~p_num_write~0 := 1 + ~p_num_write~0;~q_free~0 := 0;~q_req_up~0 := 1; 22597#L131-1 assume !false; 22599#L132 assume 0 == ~q_free~0;~p_dw_st~0 := 2;~p_dw_pc~0 := 1; 24123#L341 [2021-10-21 19:13:53,562 INFO L793 eck$LassoCheckResult]: Loop: 24123#L341 assume 0 == ~c_dr_st~0;eval_~tmp___0~2 := eval_#t~nondet14;havoc eval_#t~nondet14; 22679#L360 assume !(0 != eval_~tmp___0~2); 24122#L356 assume !false; 24203#L332 havoc exists_runnable_thread_#res;havoc exists_runnable_thread_~__retres1~2;havoc exists_runnable_thread_~__retres1~2; 22606#L247 assume !(0 == ~p_dw_st~0); 22568#L251 assume 0 == ~c_dr_st~0;exists_runnable_thread_~__retres1~2 := 1; 22569#L259 exists_runnable_thread_#res := exists_runnable_thread_~__retres1~2; 24176#L260 eval_#t~ret12 := exists_runnable_thread_#res;eval_~tmp___1~0 := eval_#t~ret12;havoc eval_#t~ret12; 24174#L336 assume 0 != eval_~tmp___1~0; 24151#L336-1 assume !(0 == ~p_dw_st~0); 24123#L341 [2021-10-21 19:13:53,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:53,562 INFO L82 PathProgramCache]: Analyzing trace with hash -266582925, now seen corresponding path program 1 times [2021-10-21 19:13:53,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:53,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701532802] [2021-10-21 19:13:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:53,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,576 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:53,597 INFO L82 PathProgramCache]: Analyzing trace with hash -474460271, now seen corresponding path program 3 times [2021-10-21 19:13:53,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:53,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948334457] [2021-10-21 19:13:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:53,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,602 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:53,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:53,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1848061315, now seen corresponding path program 1 times [2021-10-21 19:13:53,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:53,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624399867] [2021-10-21 19:13:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:53,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,631 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:53,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:54,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:13:54 BoogieIcfgContainer [2021-10-21 19:13:54,708 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:13:54,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:13:54,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:13:54,709 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:13:54,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:13:42" (3/4) ... [2021-10-21 19:13:54,711 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:13:54,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:13:54,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:13:54,774 INFO L168 Benchmark]: Toolchain (without parser) took 13178.08 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 120.4 MB in the beginning and 72.5 MB in the end (delta: 47.8 MB). Peak memory consumption was 120.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,775 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:13:54,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.94 ms. Allocated memory is still 151.0 MB. Free memory was 120.4 MB in the beginning and 124.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 122.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,776 INFO L168 Benchmark]: Boogie Preprocessor took 41.99 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 120.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,776 INFO L168 Benchmark]: RCFGBuilder took 495.41 ms. Allocated memory is still 151.0 MB. Free memory was 120.6 MB in the beginning and 105.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,777 INFO L168 Benchmark]: BuchiAutomizer took 12106.25 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 104.6 MB in the beginning and 74.6 MB in the end (delta: 30.0 MB). Peak memory consumption was 104.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,777 INFO L168 Benchmark]: Witness Printer took 64.58 ms. Allocated memory is still 224.4 MB. Free memory was 74.6 MB in the beginning and 72.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:54,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.94 ms. Allocated memory is still 151.0 MB. Free memory was 120.4 MB in the beginning and 124.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 122.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.99 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 120.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 495.41 ms. Allocated memory is still 151.0 MB. Free memory was 120.6 MB in the beginning and 105.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12106.25 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 104.6 MB in the beginning and 74.6 MB in the end (delta: 30.0 MB). Peak memory consumption was 104.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.58 ms. Allocated memory is still 224.4 MB. Free memory was 74.6 MB in the beginning and 72.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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 15 terminating modules (14 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function q_free and consists of 5 locations. 14 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1697 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 16 iterations. TraceHistogramMax:2. Analysis of lassos took 9.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 2. Automata minimization 389.4ms AutomataMinimizationTime, 15 MinimizatonAttempts, 3045 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had 1697 states and ocurred in iteration 15. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1986 SDtfs, 2689 SDslu, 2582 SDs, 0 SdLazy, 327 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 344.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN2 SILU0 SILI8 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital85 mio100 ax100 hnf100 lsp40 ukn82 mio100 lsp77 div100 bol100 ite100 ukn100 eq197 hnf91 smp100 dnf138 smp100 tf105 neg92 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 140ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 356]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12030} State at position 1 is {p_last_write=6, c_dr_i=1, c_dr_pc=0, NULL=12033, a_t=0, NULL=0, \result=0, NULL=12030, \result=0, c_num_read=0, tmp=10, c_dr_st=0, kernel_st=1, q_read_ev=2, p_dw_i=1, tmp___1=1, q_req_up=1, tmp___0=0, q_write_ev=2, __retres1=1, NULL=12032, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5377ad6a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a18ab77=0, p_dw_pc=1, NULL=0, NULL=0, NULL=0, q_free=0, NULL=12031, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5522e862=0, __retres1=0, p_dw_st=2, \result=0, q_ev=0, c_last_read=0, tmp___0=0, NULL=0, __retres1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c2d297d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@454bffd9=0, tmp=0, q_buf_0=6, p_num_write=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28ad6efb=0, __retres1=0, \result=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@678e2d0f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 331]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int q_buf_0 ; [L18] int q_free ; [L19] int q_read_ev ; [L20] int q_write_ev ; [L21] int q_req_up ; [L22] int q_ev ; [L43] int p_num_write ; [L44] int p_last_write ; [L45] int p_dw_st ; [L46] int p_dw_pc ; [L47] int p_dw_i ; [L48] int c_num_read ; [L49] int c_last_read ; [L50] int c_dr_st ; [L51] int c_dr_pc ; [L52] int c_dr_i ; [L156] static int a_t ; [L458] int __retres1 ; [L444] q_free = 1 [L445] q_write_ev = 2 [L446] q_read_ev = q_write_ev [L447] p_num_write = 0 [L448] p_dw_pc = 0 [L449] p_dw_i = 1 [L450] c_num_read = 0 [L451] c_dr_pc = 0 [L452] c_dr_i = 1 [L398] int kernel_st ; [L399] int tmp ; [L403] kernel_st = 0 [L214] COND FALSE !((int )q_req_up == 1) [L229] COND TRUE (int )p_dw_i == 1 [L230] p_dw_st = 0 [L234] COND TRUE (int )c_dr_i == 1 [L235] c_dr_st = 0 [L267] COND FALSE !((int )q_read_ev == 0) [L272] COND FALSE !((int )q_write_ev == 0) [L300] int tmp ; [L301] int tmp___0 ; [L54] int __retres1 ; [L57] COND FALSE !((int )p_dw_pc == 1) [L67] __retres1 = 0 [L69] return (__retres1); [L305] tmp = is_do_write_p_triggered() [L307] COND FALSE !(\read(tmp)) [L73] int __retres1 ; [L76] COND FALSE !((int )c_dr_pc == 1) [L86] __retres1 = 0 [L88] return (__retres1); [L313] tmp___0 = is_do_read_c_triggered() [L315] COND FALSE !(\read(tmp___0)) [L285] COND FALSE !((int )q_read_ev == 1) [L290] COND FALSE !((int )q_write_ev == 1) [L411] COND TRUE 1 [L414] kernel_st = 1 [L325] int tmp ; [L326] int tmp___0 ; [L327] int tmp___1 ; [L331] COND TRUE 1 [L244] int __retres1 ; [L247] COND TRUE (int )p_dw_st == 0 [L248] __retres1 = 1 [L260] return (__retres1); [L334] tmp___1 = exists_runnable_thread() [L336] COND TRUE \read(tmp___1) [L341] COND TRUE (int )p_dw_st == 0 [L343] tmp = __VERIFIER_nondet_int() [L345] COND TRUE \read(tmp) [L347] p_dw_st = 1 [L120] COND TRUE (int )p_dw_pc == 0 [L131] COND TRUE 1 [L133] COND FALSE !((int )q_free == 0) [L143] q_buf_0 = __VERIFIER_nondet_int() [L144] p_last_write = q_buf_0 [L145] p_num_write += 1 [L146] q_free = 0 [L147] q_req_up = 1 [L131] COND TRUE 1 [L133] COND TRUE (int )q_free == 0 [L134] p_dw_st = 2 [L135] p_dw_pc = 1 Loop: [L356] COND TRUE (int )c_dr_st == 0 [L358] tmp___0 = __VERIFIER_nondet_int() [L360] COND FALSE !(\read(tmp___0)) [L331] COND TRUE 1 [L244] int __retres1 ; [L247] COND FALSE !((int )p_dw_st == 0) [L251] COND TRUE (int )c_dr_st == 0 [L252] __retres1 = 1 [L260] return (__retres1); [L334] tmp___1 = exists_runnable_thread() [L336] COND TRUE \read(tmp___1) [L341] COND FALSE !((int )p_dw_st == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:13:54,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0b0040-d75c-41b3-87ce-2614b3dd7137/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...