./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU --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 65159196aa732cf84d788dcb31500c216d665703806e14a7c6f7047ab62d591b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:59:04,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:59:04,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:59:04,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:59:04,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:59:04,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:59:04,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:59:04,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:59:04,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:59:04,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:59:04,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:59:04,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:59:04,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:59:04,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:59:04,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:59:04,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:59:04,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:59:04,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:59:04,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:59:04,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:59:04,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:59:04,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:59:04,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:59:04,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:59:04,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:59:04,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:59:04,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:59:04,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:59:04,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:59:04,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:59:04,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:59:04,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:59:04,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:59:04,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:59:04,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:59:04,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:59:04,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:59:04,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:59:04,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:59:04,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:59:04,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:59:04,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:59:04,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:59:04,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:59:04,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:59:04,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:59:04,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:59:04,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:59:04,939 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:59:04,939 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:59:04,939 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:59:04,940 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:59:04,940 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:59:04,940 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:59:04,941 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:59:04,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:59:04,941 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:59:04,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:59:04,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:59:04,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:59:04,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:59:04,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:59:04,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:59:04,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:59:04,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:59:04,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:59:04,945 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:59:04,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:59:04,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:59:04,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:59:04,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:59:04,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:59:04,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:59:04,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:59:04,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:59:04,949 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_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65159196aa732cf84d788dcb31500c216d665703806e14a7c6f7047ab62d591b [2021-11-02 22:59:05,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:59:05,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:59:05,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:59:05,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:59:05,254 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:59:05,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2021-11-02 22:59:05,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/data/594ad5a8a/a55f10d253b64dd0bd68801f1afbc017/FLAGc291ee9d6 [2021-11-02 22:59:05,998 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:59:06,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2021-11-02 22:59:06,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/data/594ad5a8a/a55f10d253b64dd0bd68801f1afbc017/FLAGc291ee9d6 [2021-11-02 22:59:06,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/data/594ad5a8a/a55f10d253b64dd0bd68801f1afbc017 [2021-11-02 22:59:06,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:59:06,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:59:06,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:59:06,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:59:06,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:59:06,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccb0899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06, skipping insertion in model container [2021-11-02 22:59:06,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:59:06,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:59:06,648 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_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c[15075,15088] [2021-11-02 22:59:06,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:59:06,660 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:59:06,762 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_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c[15075,15088] [2021-11-02 22:59:06,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:59:06,790 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:59:06,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06 WrapperNode [2021-11-02 22:59:06,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:59:06,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:59:06,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:59:06,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:59:06,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:59:06,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:59:06,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:59:06,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:59:06,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:59:06,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:59:06,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:59:06,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:59:06,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (1/1) ... [2021-11-02 22:59:06,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:06,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:06,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:07,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:59:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:59:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:59:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:59:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:59:07,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:59:07,748 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2021-11-02 22:59:07,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:07 BoogieIcfgContainer [2021-11-02 22:59:07,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:59:07,755 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:59:07,755 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:59:07,759 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:59:07,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:59:07,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:59:06" (1/3) ... [2021-11-02 22:59:07,763 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dc1ab74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:59:07, skipping insertion in model container [2021-11-02 22:59:07,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:59:07,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:06" (2/3) ... [2021-11-02 22:59:07,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dc1ab74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:59:07, skipping insertion in model container [2021-11-02 22:59:07,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:59:07,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:07" (3/3) ... [2021-11-02 22:59:07,766 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c [2021-11-02 22:59:07,853 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:59:07,853 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:59:07,854 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:59:07,855 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:59:07,855 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:59:07,855 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:59:07,855 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:59:07,855 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:59:07,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 108 states have internal predecessors, (187), 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) [2021-11-02 22:59:07,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-11-02 22:59:07,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:59:07,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:59:07,942 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:07,943 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] [2021-11-02 22:59:07,943 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:59:07,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 108 states have internal predecessors, (187), 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) [2021-11-02 22:59:07,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 59 [2021-11-02 22:59:07,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:59:07,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:59:07,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:07,961 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] [2021-11-02 22:59:07,970 INFO L791 eck$LassoCheckResult]: Stem: 94#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 42#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 69#L228true assume !(0 == ~r1~0);init_~tmp~0 := 0; 50#L228-1true init_#res := init_~tmp~0; 16#L389true main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 45#L22true assume !(0 == assume_abort_if_not_~cond); 77#L21true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 83#L467-2true [2021-11-02 22:59:07,981 INFO L793 eck$LassoCheckResult]: Loop: 83#L467-2true assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 24#L78true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 72#L82true assume !(node1_~m1~0 != ~nomsg~0); 10#L82-1true ~mode1~0 := 0; 46#L78-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 20#L104true assume !(0 != ~mode2~0 % 256); 5#L117true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 28#L117-2true ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 107#L104-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 91#L129true assume !(0 != ~mode3~0 % 256); 79#L142true assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 76#L142-2true ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 12#L129-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 73#L154true assume !(0 != ~mode4~0 % 256); 21#L167true assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 34#L167-2true ~p4_new~0 := (if node4_#t~ite10 % 256 <= 127 then node4_#t~ite10 % 256 else node4_#t~ite10 % 256 - 256);havoc node4_#t~ite10;~mode4~0 := 1; 108#L154-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 96#L179true assume !(0 != ~mode5~0 % 256); 75#L192true assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 74#L192-2true ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 26#L179-2true havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 87#L204true assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 63#L207true assume !(node6_~m6~0 != ~nomsg~0); 39#L207-1true ~mode6~0 := 0; 78#L204-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 98#L397true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 84#L397-1true check_#res := check_~tmp~1; 40#L417true main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 93#L500true assume !(0 == assert_~arg % 256); 27#L495true main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 83#L467-2true [2021-11-02 22:59:07,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:07,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2030119858, now seen corresponding path program 1 times [2021-11-02 22:59:07,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:07,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172428826] [2021-11-02 22:59:08,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:08,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:08,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:08,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172428826] [2021-11-02 22:59:08,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172428826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:08,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:08,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:59:08,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969311522] [2021-11-02 22:59:08,288 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 22:59:08,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash 65171351, now seen corresponding path program 1 times [2021-11-02 22:59:08,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:08,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191216720] [2021-11-02 22:59:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:08,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:08,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:08,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191216720] [2021-11-02 22:59:08,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191216720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:08,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:08,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:59:08,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042394689] [2021-11-02 22:59:08,458 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:59:08,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:59:08,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:08,478 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 108 states have internal predecessors, (187), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:08,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:08,586 INFO L93 Difference]: Finished difference Result 112 states and 186 transitions. [2021-11-02 22:59:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:59:08,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 186 transitions. [2021-11-02 22:59:08,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-11-02 22:59:08,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 104 states and 139 transitions. [2021-11-02 22:59:08,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-11-02 22:59:08,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-11-02 22:59:08,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 139 transitions. [2021-11-02 22:59:08,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:59:08,602 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-11-02 22:59:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 139 transitions. [2021-11-02 22:59:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-02 22:59:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.3365384615384615) internal successors, (139), 103 states have internal predecessors, (139), 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) [2021-11-02 22:59:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2021-11-02 22:59:08,642 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-11-02 22:59:08,642 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-11-02 22:59:08,642 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:59:08,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 139 transitions. [2021-11-02 22:59:08,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-11-02 22:59:08,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:59:08,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:59:08,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:08,647 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] [2021-11-02 22:59:08,649 INFO L791 eck$LassoCheckResult]: Stem: 341#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 301#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 302#L228 assume 0 == ~r1~0; 328#L229 assume ~id1~0 >= 0; 323#L230 assume 0 == ~st1~0; 324#L231 assume ~send1~0 == ~id1~0; 326#L232 assume 0 == ~mode1~0 % 256; 316#L233 assume ~id2~0 >= 0; 317#L234 assume 0 == ~st2~0; 320#L235 assume ~send2~0 == ~id2~0; 310#L236 assume 0 == ~mode2~0 % 256; 311#L237 assume ~id3~0 >= 0; 287#L238 assume 0 == ~st3~0; 288#L239 assume ~send3~0 == ~id3~0; 285#L240 assume 0 == ~mode3~0 % 256; 286#L241 assume ~id4~0 >= 0; 290#L242 assume 0 == ~st4~0; 325#L243 assume ~send4~0 == ~id4~0; 248#L244 assume 0 == ~mode4~0 % 256; 249#L245 assume ~id5~0 >= 0; 289#L246 assume 0 == ~st5~0; 315#L247 assume ~send5~0 == ~id5~0; 336#L248 assume 0 == ~mode5~0 % 256; 241#L249 assume ~id6~0 >= 0; 242#L250 assume 0 == ~st6~0; 327#L251 assume ~send6~0 == ~id6~0; 304#L252 assume 0 == ~mode6~0 % 256; 305#L253 assume ~id1~0 != ~id2~0; 307#L254 assume ~id1~0 != ~id3~0; 264#L255 assume ~id1~0 != ~id4~0; 265#L256 assume ~id1~0 != ~id5~0; 306#L257 assume ~id1~0 != ~id6~0; 294#L258 assume ~id2~0 != ~id3~0; 295#L259 assume ~id2~0 != ~id4~0; 318#L260 assume ~id2~0 != ~id5~0; 319#L261 assume ~id2~0 != ~id6~0; 308#L262 assume ~id3~0 != ~id4~0; 309#L263 assume ~id3~0 != ~id5~0; 312#L264 assume ~id3~0 != ~id6~0; 313#L265 assume ~id4~0 != ~id5~0; 254#L266 assume ~id4~0 != ~id6~0; 255#L267 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 284#L228-1 init_#res := init_~tmp~0; 259#L389 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 260#L22 assume !(0 == assume_abort_if_not_~cond); 303#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 281#L467-2 [2021-11-02 22:59:08,651 INFO L793 eck$LassoCheckResult]: Loop: 281#L467-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 274#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 275#L82 assume !(node1_~m1~0 != ~nomsg~0); 240#L82-1 ~mode1~0 := 0; 253#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 266#L104 assume !(0 != ~mode2~0 % 256); 243#L117 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 244#L117-2 ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 282#L104-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 338#L129 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 339#L132 assume !(node3_~m3~0 != ~nomsg~0); 262#L132-1 ~mode3~0 := 0; 256#L129-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 257#L154 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 245#L157 assume !(node4_~m4~0 != ~nomsg~0); 246#L157-1 ~mode4~0 := 0; 263#L154-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 342#L179 assume !(0 != ~mode5~0 % 256); 330#L192 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 329#L192-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 278#L179-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 279#L204 assume !(0 != ~mode6~0 % 256); 272#L217 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 273#L217-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 297#L204-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 332#L397 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1 := 0; 251#L397-1 check_#res := check_~tmp~1; 298#L417 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 299#L500 assume !(0 == assert_~arg % 256); 280#L495 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 281#L467-2 [2021-11-02 22:59:08,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 1 times [2021-11-02 22:59:08,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:08,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094974593] [2021-11-02 22:59:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:08,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:08,735 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:59:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:08,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:59:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:08,879 INFO L85 PathProgramCache]: Analyzing trace with hash 522504993, now seen corresponding path program 1 times [2021-11-02 22:59:08,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:08,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916684922] [2021-11-02 22:59:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:08,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:09,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:09,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916684922] [2021-11-02 22:59:09,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916684922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:09,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:09,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:59:09,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710987332] [2021-11-02 22:59:09,086 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:59:09,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:09,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:59:09,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:09,090 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. cyclomatic complexity: 36 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:09,161 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2021-11-02 22:59:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:59:09,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 141 transitions. [2021-11-02 22:59:09,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-11-02 22:59:09,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 104 states and 136 transitions. [2021-11-02 22:59:09,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-11-02 22:59:09,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-11-02 22:59:09,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 136 transitions. [2021-11-02 22:59:09,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:59:09,177 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-02 22:59:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 136 transitions. [2021-11-02 22:59:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-02 22:59:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 103 states have internal predecessors, (136), 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) [2021-11-02 22:59:09,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2021-11-02 22:59:09,197 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-02 22:59:09,197 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-02 22:59:09,197 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:59:09,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 136 transitions. [2021-11-02 22:59:09,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2021-11-02 22:59:09,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:59:09,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:59:09,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:09,206 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] [2021-11-02 22:59:09,207 INFO L791 eck$LassoCheckResult]: Stem: 564#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 524#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 525#L228 assume 0 == ~r1~0; 551#L229 assume ~id1~0 >= 0; 546#L230 assume 0 == ~st1~0; 547#L231 assume ~send1~0 == ~id1~0; 549#L232 assume 0 == ~mode1~0 % 256; 539#L233 assume ~id2~0 >= 0; 540#L234 assume 0 == ~st2~0; 543#L235 assume ~send2~0 == ~id2~0; 533#L236 assume 0 == ~mode2~0 % 256; 534#L237 assume ~id3~0 >= 0; 509#L238 assume 0 == ~st3~0; 510#L239 assume ~send3~0 == ~id3~0; 507#L240 assume 0 == ~mode3~0 % 256; 508#L241 assume ~id4~0 >= 0; 512#L242 assume 0 == ~st4~0; 548#L243 assume ~send4~0 == ~id4~0; 471#L244 assume 0 == ~mode4~0 % 256; 472#L245 assume ~id5~0 >= 0; 511#L246 assume 0 == ~st5~0; 538#L247 assume ~send5~0 == ~id5~0; 559#L248 assume 0 == ~mode5~0 % 256; 464#L249 assume ~id6~0 >= 0; 465#L250 assume 0 == ~st6~0; 550#L251 assume ~send6~0 == ~id6~0; 527#L252 assume 0 == ~mode6~0 % 256; 528#L253 assume ~id1~0 != ~id2~0; 530#L254 assume ~id1~0 != ~id3~0; 486#L255 assume ~id1~0 != ~id4~0; 487#L256 assume ~id1~0 != ~id5~0; 529#L257 assume ~id1~0 != ~id6~0; 516#L258 assume ~id2~0 != ~id3~0; 517#L259 assume ~id2~0 != ~id4~0; 541#L260 assume ~id2~0 != ~id5~0; 542#L261 assume ~id2~0 != ~id6~0; 531#L262 assume ~id3~0 != ~id4~0; 532#L263 assume ~id3~0 != ~id5~0; 535#L264 assume ~id3~0 != ~id6~0; 536#L265 assume ~id4~0 != ~id5~0; 476#L266 assume ~id4~0 != ~id6~0; 477#L267 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 506#L228-1 init_#res := init_~tmp~0; 481#L389 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 482#L22 assume !(0 == assume_abort_if_not_~cond); 526#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 503#L467-2 [2021-11-02 22:59:09,207 INFO L793 eck$LassoCheckResult]: Loop: 503#L467-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 496#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 497#L82 assume !(node1_~m1~0 != ~nomsg~0); 463#L82-1 ~mode1~0 := 0; 475#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 488#L104 assume !(0 != ~mode2~0 % 256); 466#L117 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 467#L117-2 ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 504#L104-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 561#L129 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 562#L132 assume !(node3_~m3~0 != ~nomsg~0); 484#L132-1 ~mode3~0 := 0; 478#L129-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 479#L154 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 468#L157 assume !(node4_~m4~0 != ~nomsg~0); 469#L157-1 ~mode4~0 := 0; 485#L154-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 565#L179 assume !(0 != ~mode5~0 % 256); 553#L192 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 552#L192-2 ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 500#L179-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 501#L204 assume 0 != ~mode6~0 % 256;node6_~m6~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 544#L207 assume !(node6_~m6~0 != ~nomsg~0); 518#L207-1 ~mode6~0 := 0; 519#L204-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 555#L397 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 563#L398 assume ~r1~0 >= 6; 474#L402 assume ~r1~0 < 6;check_~tmp~1 := 1; 521#L397-1 check_#res := check_~tmp~1; 522#L417 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 523#L500 assume !(0 == assert_~arg % 256); 502#L495 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 503#L467-2 [2021-11-02 22:59:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:09,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 2 times [2021-11-02 22:59:09,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:09,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866145535] [2021-11-02 22:59:09,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:09,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:09,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:59:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:09,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:59:09,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash 242413115, now seen corresponding path program 1 times [2021-11-02 22:59:09,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:09,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121688235] [2021-11-02 22:59:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:09,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:09,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:09,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121688235] [2021-11-02 22:59:09,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121688235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:09,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:09,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:59:09,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902556228] [2021-11-02 22:59:09,405 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:59:09,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:09,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:09,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:09,407 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:09,455 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2021-11-02 22:59:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:09,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 215 transitions. [2021-11-02 22:59:09,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 110 [2021-11-02 22:59:09,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 215 transitions. [2021-11-02 22:59:09,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2021-11-02 22:59:09,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2021-11-02 22:59:09,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 215 transitions. [2021-11-02 22:59:09,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:59:09,469 INFO L681 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2021-11-02 22:59:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 215 transitions. [2021-11-02 22:59:09,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-02 22:59:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.3782051282051282) internal successors, (215), 155 states have internal predecessors, (215), 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) [2021-11-02 22:59:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 215 transitions. [2021-11-02 22:59:09,483 INFO L704 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2021-11-02 22:59:09,483 INFO L587 BuchiCegarLoop]: Abstraction has 156 states and 215 transitions. [2021-11-02 22:59:09,483 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 22:59:09,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 215 transitions. [2021-11-02 22:59:09,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 110 [2021-11-02 22:59:09,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:59:09,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:59:09,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:09,486 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] [2021-11-02 22:59:09,486 INFO L791 eck$LassoCheckResult]: Stem: 832#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0; 790#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~ret38, main_#t~ret39, main_#t~post40, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~id2~0 := main_#t~nondet18;havoc main_#t~nondet18;~st2~0 := main_#t~nondet19;havoc main_#t~nondet19;~send2~0 := main_#t~nondet20;havoc main_#t~nondet20;~mode2~0 := main_#t~nondet21;havoc main_#t~nondet21;~id3~0 := main_#t~nondet22;havoc main_#t~nondet22;~st3~0 := main_#t~nondet23;havoc main_#t~nondet23;~send3~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode3~0 := main_#t~nondet25;havoc main_#t~nondet25;~id4~0 := main_#t~nondet26;havoc main_#t~nondet26;~st4~0 := main_#t~nondet27;havoc main_#t~nondet27;~send4~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode4~0 := main_#t~nondet29;havoc main_#t~nondet29;~id5~0 := main_#t~nondet30;havoc main_#t~nondet30;~st5~0 := main_#t~nondet31;havoc main_#t~nondet31;~send5~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode5~0 := main_#t~nondet33;havoc main_#t~nondet33;~id6~0 := main_#t~nondet34;havoc main_#t~nondet34;~st6~0 := main_#t~nondet35;havoc main_#t~nondet35;~send6~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode6~0 := main_#t~nondet37;havoc main_#t~nondet37;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 791#L228 assume 0 == ~r1~0; 817#L229 assume ~id1~0 >= 0; 812#L230 assume 0 == ~st1~0; 813#L231 assume ~send1~0 == ~id1~0; 815#L232 assume 0 == ~mode1~0 % 256; 805#L233 assume ~id2~0 >= 0; 806#L234 assume 0 == ~st2~0; 809#L235 assume ~send2~0 == ~id2~0; 799#L236 assume 0 == ~mode2~0 % 256; 800#L237 assume ~id3~0 >= 0; 775#L238 assume 0 == ~st3~0; 776#L239 assume ~send3~0 == ~id3~0; 773#L240 assume 0 == ~mode3~0 % 256; 774#L241 assume ~id4~0 >= 0; 778#L242 assume 0 == ~st4~0; 814#L243 assume ~send4~0 == ~id4~0; 737#L244 assume 0 == ~mode4~0 % 256; 738#L245 assume ~id5~0 >= 0; 777#L246 assume 0 == ~st5~0; 804#L247 assume ~send5~0 == ~id5~0; 827#L248 assume 0 == ~mode5~0 % 256; 730#L249 assume ~id6~0 >= 0; 731#L250 assume 0 == ~st6~0; 816#L251 assume ~send6~0 == ~id6~0; 793#L252 assume 0 == ~mode6~0 % 256; 794#L253 assume ~id1~0 != ~id2~0; 796#L254 assume ~id1~0 != ~id3~0; 752#L255 assume ~id1~0 != ~id4~0; 753#L256 assume ~id1~0 != ~id5~0; 795#L257 assume ~id1~0 != ~id6~0; 782#L258 assume ~id2~0 != ~id3~0; 783#L259 assume ~id2~0 != ~id4~0; 807#L260 assume ~id2~0 != ~id5~0; 808#L261 assume ~id2~0 != ~id6~0; 797#L262 assume ~id3~0 != ~id4~0; 798#L263 assume ~id3~0 != ~id5~0; 801#L264 assume ~id3~0 != ~id6~0; 802#L265 assume ~id4~0 != ~id5~0; 742#L266 assume ~id4~0 != ~id6~0; 743#L267 assume ~id5~0 != ~id6~0;init_~tmp~0 := 1; 772#L228-1 init_#res := init_~tmp~0; 747#L389 main_#t~ret38 := init_#res;main_~i2~0 := main_#t~ret38;havoc main_#t~ret38;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 748#L22 assume !(0 == assume_abort_if_not_~cond); 792#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;main_~i2~0 := 0; 769#L467-2 [2021-11-02 22:59:09,487 INFO L793 eck$LassoCheckResult]: Loop: 769#L467-2 assume !!(main_~i2~0 < 12);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 762#L78 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 763#L82 assume !(node1_~m1~0 != ~nomsg~0); 729#L82-1 ~mode1~0 := 0; 741#L78-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 754#L104 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 755#L107 assume !(node2_~m2~0 != ~nomsg~0); 759#L107-1 ~mode2~0 := 0; 770#L104-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 867#L129 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 866#L132 assume !(node3_~m3~0 != ~nomsg~0); 863#L132-1 ~mode3~0 := 0; 861#L129-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 860#L154 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 858#L157 assume !(node4_~m4~0 != ~nomsg~0); 855#L157-1 ~mode4~0 := 0; 853#L154-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 852#L179 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 850#L182 assume !(node5_~m5~0 != ~nomsg~0); 847#L182-1 ~mode5~0 := 0; 845#L179-2 havoc node6_#t~ite12, node6_~m6~0;havoc node6_~m6~0;node6_~m6~0 := ~nomsg~0; 844#L204 assume !(0 != ~mode6~0 % 256); 840#L217 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite12 := ~send6~0; 838#L217-2 ~p6_new~0 := (if node6_#t~ite12 % 256 <= 127 then node6_#t~ite12 % 256 else node6_#t~ite12 % 256 - 256);havoc node6_#t~ite12;~mode6~0 := 1; 837#L204-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 836#L397 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 835#L398 assume !(~r1~0 >= 6); 739#L401 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0; 740#L402 assume ~r1~0 < 6;check_~tmp~1 := 1; 826#L397-1 check_#res := check_~tmp~1; 788#L417 main_#t~ret39 := check_#res;main_~c1~0 := main_#t~ret39;havoc main_#t~ret39;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 789#L500 assume !(0 == assert_~arg % 256); 768#L495 main_#t~post40 := main_~i2~0;main_~i2~0 := 1 + main_#t~post40;havoc main_#t~post40; 769#L467-2 [2021-11-02 22:59:09,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:09,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1716035805, now seen corresponding path program 3 times [2021-11-02 22:59:09,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:09,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224084780] [2021-11-02 22:59:09,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:09,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:09,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:59:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:09,588 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:59:09,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:09,589 INFO L85 PathProgramCache]: Analyzing trace with hash -312145021, now seen corresponding path program 1 times [2021-11-02 22:59:09,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:09,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492970014] [2021-11-02 22:59:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:09,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:09,603 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:59:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:59:09,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:59:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:09,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1903322975, now seen corresponding path program 1 times [2021-11-02 22:59:09,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:09,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218815433] [2021-11-02 22:59:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:09,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:09,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:09,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218815433] [2021-11-02 22:59:09,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218815433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:09,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:09,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:59:09,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979964408] [2021-11-02 22:59:11,506 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:59:11,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:59:11,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:59:11,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:59:11,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:59:11,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:11,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:59:11,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:59:11,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.6.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-11-02 22:59:11,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:59:11,513 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:59:11,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:11,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:13,887 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:59:13,888 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:59:13,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:13,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:13,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:13,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:59:13,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:59:13,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 22:59:13,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:13,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:13,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:13,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:13,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:59:13,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:59:14,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 22:59:14,197 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:59:14,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:14,200 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:59:14,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:59:14,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:59:14,200 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:59:14,200 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:59:14,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:14,201 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:59:14,201 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:59:14,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.6.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-11-02 22:59:14,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:59:14,201 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:59:14,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:14,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:59:16,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:59:16,567 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:59:16,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 22:59:16,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 22:59:16,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-02 22:59:16,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 22:59:16,627 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 [2021-11-02 22:59:16,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:16,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 22:59:16,663 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 [2021-11-02 22:59:16,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:16,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,723 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 22:59:16,724 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 [2021-11-02 22:59:16,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,732 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-02 22:59:16,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,736 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-02 22:59:16,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-02 22:59:16,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 22:59:16,770 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 [2021-11-02 22:59:16,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:16,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 22:59:16,811 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 [2021-11-02 22:59:16,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-02 22:59:16,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,844 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 22:59:16,847 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 [2021-11-02 22:59:16,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-02 22:59:16,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,882 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 22:59:16,901 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 [2021-11-02 22:59:16,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:16,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:16,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:16,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:16,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:16,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:16,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:16,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:16,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 22:59:16,938 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 [2021-11-02 22:59:16,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:16,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:16,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:16,947 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-11-02 22:59:16,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:16,991 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-11-02 22:59:16,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:17,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:17,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:17,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:17,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:17,072 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:17,082 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 [2021-11-02 22:59:17,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:17,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:17,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:17,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:17,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:17,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:17,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:17,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 22:59:17,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:17,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:17,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:17,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:17,129 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:17,142 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 [2021-11-02 22:59:17,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:17,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:17,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:17,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:17,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:17,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:17,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:17,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 22:59:17,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:17,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:17,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:17,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:17,214 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:17,220 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 [2021-11-02 22:59:17,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:17,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:17,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:17,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:17,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:17,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:17,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:17,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 22:59:17,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:59:17,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:17,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:17,268 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:17,273 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 [2021-11-02 22:59:17,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 22:59:17,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:59:17,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:59:17,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:59:17,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:59:17,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:59:17,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:59:17,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:59:17,284 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:59:17,289 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 22:59:17,289 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-02 22:59:17,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:59:17,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:17,292 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:17,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 22:59:17,301 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:59:17,301 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:59:17,301 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:59:17,302 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 23 Supporting invariants [] [2021-11-02 22:59:17,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:17,333 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:59:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:17,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:59:17,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:17,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:59:17,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:17,939 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:59:17,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 156 states and 215 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-02 22:59:18,015 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 156 states and 215 transitions. cyclomatic complexity: 60. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 265 states and 384 transitions. Complement of second has 4 states. [2021-11-02 22:59:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 22:59:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-02 22:59:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2021-11-02 22:59:18,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 46 letters. Loop has 33 letters. [2021-11-02 22:59:18,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:59:18,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 79 letters. Loop has 33 letters. [2021-11-02 22:59:18,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:59:18,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 136 transitions. Stem has 46 letters. Loop has 66 letters. [2021-11-02 22:59:18,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:59:18,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 384 transitions. [2021-11-02 22:59:18,036 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:59:18,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 0 states and 0 transitions. [2021-11-02 22:59:18,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:59:18,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:59:18,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:59:18,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:59:18,037 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:59:18,037 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:59:18,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:18,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:18,041 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-02 22:59:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:18,041 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-02 22:59:18,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:59:18,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-02 22:59:18,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:59:18,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 22:59:18,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:59:18,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:59:18,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:59:18,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:59:18,043 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:59:18,043 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:59:18,043 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:59:18,043 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 22:59:18,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:59:18,044 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:59:18,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 22:59:18,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:59:18 BoogieIcfgContainer [2021-11-02 22:59:18,050 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:59:18,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:59:18,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:59:18,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:59:18,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:07" (3/4) ... [2021-11-02 22:59:18,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 22:59:18,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:59:18,058 INFO L168 Benchmark]: Toolchain (without parser) took 11806.92 ms. Allocated memory was 94.4 MB in the beginning and 153.1 MB in the end (delta: 58.7 MB). Free memory was 58.7 MB in the beginning and 58.4 MB in the end (delta: 276.9 kB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,058 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 65.7 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:59:18,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.98 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 64.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.97 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 61.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,066 INFO L168 Benchmark]: Boogie Preprocessor took 62.24 ms. Allocated memory is still 94.4 MB. Free memory was 61.6 MB in the beginning and 59.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,069 INFO L168 Benchmark]: RCFGBuilder took 808.21 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 90.4 MB in the end (delta: -30.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,070 INFO L168 Benchmark]: BuchiAutomizer took 10295.61 ms. Allocated memory was 115.3 MB in the beginning and 153.1 MB in the end (delta: 37.7 MB). Free memory was 90.3 MB in the beginning and 59.5 MB in the end (delta: 30.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,072 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 153.1 MB. Free memory was 59.5 MB in the beginning and 58.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:59:18,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 65.7 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 532.98 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 64.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.97 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 61.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.24 ms. Allocated memory is still 94.4 MB. Free memory was 61.6 MB in the beginning and 59.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 808.21 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 90.4 MB in the end (delta: -30.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10295.61 ms. Allocated memory was 115.3 MB in the beginning and 153.1 MB in the end (delta: 37.7 MB). Free memory was 90.3 MB in the beginning and 59.5 MB in the end (delta: 30.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.64 ms. Allocated memory is still 153.1 MB. Free memory was 59.5 MB in the beginning and 58.4 MB in the end (delta: 1.1 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 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 23 + -2 * i2 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 8.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 156 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 660 SDtfs, 217 SDslu, 1122 SDs, 0 SdLazy, 36 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital213 mio100 ax100 hnf100 lsp57 ukn80 mio100 lsp100 div131 bol100 ite100 ukn100 eq193 hnf76 smp100 dnf718 smp49 tf100 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 101ms VariablesStem: 0 VariablesLoop: 33 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 22:59:18,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:18,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d6f0f7-0a12-4ce5-b36b-c98b7a677867/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE