./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17ba764d4851428799f2c4794a4662e2753aae472d291b23839dac79bbfbab6d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:07:24,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:07:24,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:07:24,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:07:24,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:07:24,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:07:24,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:07:24,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:07:24,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:07:24,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:07:24,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:07:24,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:07:24,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:07:24,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:07:24,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:07:24,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:07:24,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:07:24,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:07:24,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:07:24,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:07:24,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:07:24,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:07:24,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:07:24,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:07:24,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:07:24,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:07:24,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:07:24,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:07:24,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:07:24,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:07:24,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:07:24,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:07:24,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:07:24,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:07:24,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:07:24,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:07:24,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:07:24,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:07:24,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:07:24,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:07:24,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:07:24,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:07:24,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:07:24,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:07:24,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:07:24,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:07:24,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:07:24,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:07:24,949 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:07:24,949 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:07:24,949 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:07:24,950 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:07:24,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:07:24,951 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:07:24,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:07:24,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:07:24,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:07:24,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:07:24,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:07:24,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:07:24,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:07:24,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:07:24,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:07:24,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:07:24,954 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:07:24,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:07:24,954 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:07:24,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:07:24,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:07:24,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:07:24,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:07:24,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:07:24,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:07:24,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:07:24,958 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:07:24,958 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_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17ba764d4851428799f2c4794a4662e2753aae472d291b23839dac79bbfbab6d [2021-10-21 20:07:25,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:07:25,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:07:25,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:07:25,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:07:25,339 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:07:25,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2021-10-21 20:07:25,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/data/8bcb38e63/9cd07ee088b347b2ae00766743765bd7/FLAG1926c7bd1 [2021-10-21 20:07:26,055 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:07:26,056 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2021-10-21 20:07:26,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/data/8bcb38e63/9cd07ee088b347b2ae00766743765bd7/FLAG1926c7bd1 [2021-10-21 20:07:26,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/data/8bcb38e63/9cd07ee088b347b2ae00766743765bd7 [2021-10-21 20:07:26,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:07:26,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:07:26,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:07:26,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:07:26,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:07:26,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2538e3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26, skipping insertion in model container [2021-10-21 20:07:26,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:07:26,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:07:26,627 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_45c94fd7-efb5-41b2-89d2-e81472509448/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c[9392,9405] [2021-10-21 20:07:26,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:07:26,638 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:07:26,720 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_45c94fd7-efb5-41b2-89d2-e81472509448/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c[9392,9405] [2021-10-21 20:07:26,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:07:26,743 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:07:26,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26 WrapperNode [2021-10-21 20:07:26,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:07:26,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:07:26,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:07:26,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:07:26,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:07:26,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:07:26,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:07:26,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:07:26,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:07:26,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:07:26,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:07:26,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:07:26,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (1/1) ... [2021-10-21 20:07:26,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:26,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:07:26,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:07:26,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:07:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:07:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:07:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:07:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:07:27,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:07:27,671 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-21 20:07:27,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:07:27 BoogieIcfgContainer [2021-10-21 20:07:27,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:07:27,675 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:07:27,675 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:07:27,679 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:07:27,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:07:27,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:07:26" (1/3) ... [2021-10-21 20:07:27,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44834778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:07:27, skipping insertion in model container [2021-10-21 20:07:27,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:07:27,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:07:26" (2/3) ... [2021-10-21 20:07:27,682 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44834778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:07:27, skipping insertion in model container [2021-10-21 20:07:27,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:07:27,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:07:27" (3/3) ... [2021-10-21 20:07:27,684 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2021-10-21 20:07:27,752 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:07:27,753 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:07:27,753 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:07:27,753 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:07:27,753 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:07:27,754 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:07:27,754 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:07:27,754 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:07:27,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 99 states, 98 states have (on average 1.683673469387755) internal successors, (165), 98 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:27,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2021-10-21 20:07:27,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:07:27,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:07:27,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:07:27,835 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] [2021-10-21 20:07:27,835 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:07:27,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 99 states, 98 states have (on average 1.683673469387755) internal successors, (165), 98 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:27,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2021-10-21 20:07:27,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:07:27,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:07:27,846 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:07:27,847 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] [2021-10-21 20:07:27,855 INFO L791 eck$LassoCheckResult]: Stem: 89#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(47);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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 31#L-1true havoc main_#res;havoc 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~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~alive1~0 := main_#t~nondet20;havoc main_#t~nondet20;~id2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~send2~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode2~0 := main_#t~nondet24;havoc main_#t~nondet24;~alive2~0 := main_#t~nondet25;havoc main_#t~nondet25;~id3~0 := main_#t~nondet26;havoc main_#t~nondet26;~st3~0 := main_#t~nondet27;havoc main_#t~nondet27;~send3~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode3~0 := main_#t~nondet29;havoc main_#t~nondet29;~alive3~0 := main_#t~nondet30;havoc main_#t~nondet30;~id4~0 := main_#t~nondet31;havoc main_#t~nondet31;~st4~0 := main_#t~nondet32;havoc main_#t~nondet32;~send4~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode4~0 := main_#t~nondet34;havoc main_#t~nondet34;~alive4~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 45#L201true assume !(0 == ~r1~0);init_~tmp~0 := 0; 71#L201-1true init_#res := init_~tmp~0; 26#L298true main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36; 77#L350true assume !(0 == main_~i2~0); 82#L350-2true ~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;main_~i2~0 := 0; 68#L360-2true [2021-10-21 20:07:27,856 INFO L793 eck$LassoCheckResult]: Loop: 68#L360-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 101#L65true 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 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 13#L69true assume !(node1_~m1~0 != ~nomsg~0); 95#L69-1true ~mode1~0 := 0; 30#L65-2true havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 41#L100true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 88#L103true assume !(node2_~m2~0 != ~nomsg~0); 33#L103-1true ~mode2~0 := 0; 75#L100-2true havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 90#L134true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 43#L137true assume !(node3_~m3~0 != ~nomsg~0); 60#L137-1true ~mode3~0 := 0; 46#L134-2true havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 6#L168true assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 84#L171true assume !(node4_~m4~0 != ~nomsg~0); 23#L171-1true ~mode4~0 := 0; 12#L168-2true ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 96#L306true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 85#L306-1true check_#res := check_~tmp~1; 93#L318true main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 38#L387true assume !(0 == assert_~arg % 256); 86#L382true main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 68#L360-2true [2021-10-21 20:07:27,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:27,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1938506578, now seen corresponding path program 1 times [2021-10-21 20:07:27,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:27,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682780080] [2021-10-21 20:07:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:27,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:07:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:07:28,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:07:28,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682780080] [2021-10-21 20:07:28,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682780080] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:07:28,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:07:28,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:07:28,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377143850] [2021-10-21 20:07:28,102 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:07:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:28,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1584807191, now seen corresponding path program 1 times [2021-10-21 20:07:28,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:28,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394535927] [2021-10-21 20:07:28,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:28,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:07:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:07:28,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:07:28,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394535927] [2021-10-21 20:07:28,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394535927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:07:28,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:07:28,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:07:28,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220156655] [2021-10-21 20:07:28,281 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:07:28,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:07:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:07:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:07:28,302 INFO L87 Difference]: Start difference. First operand has 99 states, 98 states have (on average 1.683673469387755) internal successors, (165), 98 states have internal predecessors, (165), 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) [2021-10-21 20:07:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:07:28,434 INFO L93 Difference]: Finished difference Result 167 states and 268 transitions. [2021-10-21 20:07:28,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:07:28,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 268 transitions. [2021-10-21 20:07:28,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 64 [2021-10-21 20:07:28,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 158 states and 236 transitions. [2021-10-21 20:07:28,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 158 [2021-10-21 20:07:28,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2021-10-21 20:07:28,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 236 transitions. [2021-10-21 20:07:28,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:07:28,459 INFO L681 BuchiCegarLoop]: Abstraction has 158 states and 236 transitions. [2021-10-21 20:07:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 236 transitions. [2021-10-21 20:07:28,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 94. [2021-10-21 20:07:28,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 93 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2021-10-21 20:07:28,498 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 133 transitions. [2021-10-21 20:07:28,499 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 133 transitions. [2021-10-21 20:07:28,499 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:07:28,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 133 transitions. [2021-10-21 20:07:28,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 64 [2021-10-21 20:07:28,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:07:28,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:07:28,504 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] [2021-10-21 20:07:28,504 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] [2021-10-21 20:07:28,505 INFO L791 eck$LassoCheckResult]: Stem: 372#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(47);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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 362#L-1 havoc main_#res;havoc 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~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~alive1~0 := main_#t~nondet20;havoc main_#t~nondet20;~id2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~send2~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode2~0 := main_#t~nondet24;havoc main_#t~nondet24;~alive2~0 := main_#t~nondet25;havoc main_#t~nondet25;~id3~0 := main_#t~nondet26;havoc main_#t~nondet26;~st3~0 := main_#t~nondet27;havoc main_#t~nondet27;~send3~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode3~0 := main_#t~nondet29;havoc main_#t~nondet29;~alive3~0 := main_#t~nondet30;havoc main_#t~nondet30;~id4~0 := main_#t~nondet31;havoc main_#t~nondet31;~st4~0 := main_#t~nondet32;havoc main_#t~nondet32;~send4~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode4~0 := main_#t~nondet34;havoc main_#t~nondet34;~alive4~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 363#L201 assume 0 == ~r1~0; 333#L202 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 334#L203 assume ~id1~0 >= 0; 349#L204 assume 0 == ~st1~0; 306#L205 assume ~send1~0 == ~id1~0; 307#L206 assume 0 == ~mode1~0 % 256; 295#L207 assume ~id2~0 >= 0; 296#L208 assume 0 == ~st2~0; 359#L209 assume ~send2~0 == ~id2~0; 310#L210 assume 0 == ~mode2~0 % 256; 311#L211 assume ~id3~0 >= 0; 300#L212 assume 0 == ~st3~0; 301#L213 assume ~send3~0 == ~id3~0; 374#L214 assume 0 == ~mode3~0 % 256; 375#L215 assume ~id4~0 >= 0; 358#L216 assume 0 == ~st4~0; 337#L217 assume ~send4~0 == ~id4~0; 338#L218 assume 0 == ~mode4~0 % 256; 366#L219 assume ~id1~0 != ~id2~0; 377#L220 assume ~id1~0 != ~id3~0; 329#L221 assume ~id1~0 != ~id4~0; 325#L222 assume ~id2~0 != ~id3~0; 326#L223 assume ~id2~0 != ~id4~0; 316#L224 assume ~id3~0 != ~id4~0;init_~tmp~0 := 1; 317#L201-1 init_#res := init_~tmp~0; 346#L298 main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36; 354#L350 assume !(0 == main_~i2~0); 357#L350-2 ~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;main_~i2~0 := 0; 341#L360-2 [2021-10-21 20:07:28,505 INFO L793 eck$LassoCheckResult]: Loop: 341#L360-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 342#L65 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 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 318#L69 assume !(node1_~m1~0 != ~nomsg~0); 292#L69-1 ~mode1~0 := 0; 360#L65-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 361#L100 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 370#L103 assume !(node2_~m2~0 != ~nomsg~0); 331#L103-1 ~mode2~0 := 0; 355#L100-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 356#L134 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 373#L137 assume !(node3_~m3~0 != ~nomsg~0); 314#L137-1 ~mode3~0 := 0; 315#L134-2 havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 288#L168 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 290#L171 assume !(node4_~m4~0 != ~nomsg~0); 345#L171-1 ~mode4~0 := 0; 304#L168-2 ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 312#L306 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 294#L306-1 check_#res := check_~tmp~1; 368#L318 main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 371#L387 assume !(0 == assert_~arg % 256); 369#L382 main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 341#L360-2 [2021-10-21 20:07:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:28,506 INFO L82 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 1 times [2021-10-21 20:07:28,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:28,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963796692] [2021-10-21 20:07:28,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:28,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:07:28,578 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:07:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:07:28,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:07:28,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:28,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1584807191, now seen corresponding path program 2 times [2021-10-21 20:07:28,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:28,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927395959] [2021-10-21 20:07:28,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:28,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:07:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:07:28,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:07:28,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927395959] [2021-10-21 20:07:28,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927395959] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:07:28,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:07:28,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:07:28,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113582582] [2021-10-21 20:07:28,865 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:07:28,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:07:28,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:07:28,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:07:28,869 INFO L87 Difference]: Start difference. First operand 94 states and 133 transitions. cyclomatic complexity: 40 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:07:28,939 INFO L93 Difference]: Finished difference Result 97 states and 135 transitions. [2021-10-21 20:07:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:07:28,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 135 transitions. [2021-10-21 20:07:28,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 64 [2021-10-21 20:07:28,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 94 states and 131 transitions. [2021-10-21 20:07:28,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2021-10-21 20:07:28,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2021-10-21 20:07:28,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 131 transitions. [2021-10-21 20:07:28,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:07:28,946 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 131 transitions. [2021-10-21 20:07:28,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 131 transitions. [2021-10-21 20:07:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-10-21 20:07:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 93 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2021-10-21 20:07:28,953 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 131 transitions. [2021-10-21 20:07:28,954 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 131 transitions. [2021-10-21 20:07:28,954 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:07:28,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 131 transitions. [2021-10-21 20:07:28,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 64 [2021-10-21 20:07:28,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:07:28,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:07:28,957 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] [2021-10-21 20:07:28,957 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] [2021-10-21 20:07:28,957 INFO L791 eck$LassoCheckResult]: Stem: 574#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(47);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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 565#L-1 havoc main_#res;havoc 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~ret36, main_#t~ret37, main_#t~post38, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet15;havoc main_#t~nondet15;~id1~0 := main_#t~nondet16;havoc main_#t~nondet16;~st1~0 := main_#t~nondet17;havoc main_#t~nondet17;~send1~0 := main_#t~nondet18;havoc main_#t~nondet18;~mode1~0 := main_#t~nondet19;havoc main_#t~nondet19;~alive1~0 := main_#t~nondet20;havoc main_#t~nondet20;~id2~0 := main_#t~nondet21;havoc main_#t~nondet21;~st2~0 := main_#t~nondet22;havoc main_#t~nondet22;~send2~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode2~0 := main_#t~nondet24;havoc main_#t~nondet24;~alive2~0 := main_#t~nondet25;havoc main_#t~nondet25;~id3~0 := main_#t~nondet26;havoc main_#t~nondet26;~st3~0 := main_#t~nondet27;havoc main_#t~nondet27;~send3~0 := main_#t~nondet28;havoc main_#t~nondet28;~mode3~0 := main_#t~nondet29;havoc main_#t~nondet29;~alive3~0 := main_#t~nondet30;havoc main_#t~nondet30;~id4~0 := main_#t~nondet31;havoc main_#t~nondet31;~st4~0 := main_#t~nondet32;havoc main_#t~nondet32;~send4~0 := main_#t~nondet33;havoc main_#t~nondet33;~mode4~0 := main_#t~nondet34;havoc main_#t~nondet34;~alive4~0 := main_#t~nondet35;havoc main_#t~nondet35;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 566#L201 assume 0 == ~r1~0; 536#L202 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 537#L203 assume ~id1~0 >= 0; 552#L204 assume 0 == ~st1~0; 508#L205 assume ~send1~0 == ~id1~0; 509#L206 assume 0 == ~mode1~0 % 256; 496#L207 assume ~id2~0 >= 0; 497#L208 assume 0 == ~st2~0; 562#L209 assume ~send2~0 == ~id2~0; 513#L210 assume 0 == ~mode2~0 % 256; 514#L211 assume ~id3~0 >= 0; 503#L212 assume 0 == ~st3~0; 504#L213 assume ~send3~0 == ~id3~0; 577#L214 assume 0 == ~mode3~0 % 256; 578#L215 assume ~id4~0 >= 0; 561#L216 assume 0 == ~st4~0; 540#L217 assume ~send4~0 == ~id4~0; 541#L218 assume 0 == ~mode4~0 % 256; 567#L219 assume ~id1~0 != ~id2~0; 580#L220 assume ~id1~0 != ~id3~0; 530#L221 assume ~id1~0 != ~id4~0; 528#L222 assume ~id2~0 != ~id3~0; 529#L223 assume ~id2~0 != ~id4~0; 519#L224 assume ~id3~0 != ~id4~0;init_~tmp~0 := 1; 520#L201-1 init_#res := init_~tmp~0; 548#L298 main_#t~ret36 := init_#res;main_~i2~0 := main_#t~ret36;havoc main_#t~ret36; 556#L350 assume !(0 == main_~i2~0); 560#L350-2 ~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;main_~i2~0 := 0; 544#L360-2 [2021-10-21 20:07:28,958 INFO L793 eck$LassoCheckResult]: Loop: 544#L360-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 545#L65 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 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 521#L69 assume !(node1_~m1~0 != ~nomsg~0); 492#L69-1 ~mode1~0 := 0; 563#L65-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 564#L100 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 573#L103 assume !(node2_~m2~0 != ~nomsg~0); 534#L103-1 ~mode2~0 := 0; 557#L100-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 559#L134 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 576#L137 assume !(node3_~m3~0 != ~nomsg~0); 517#L137-1 ~mode3~0 := 0; 518#L134-2 havoc node4_#t~ite13, node4_#t~ite14, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 493#L168 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 495#L171 assume !(node4_~m4~0 != ~nomsg~0); 551#L171-1 ~mode4~0 := 0; 507#L168-2 ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 515#L306 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 516#L307 assume ~r1~0 < 4;check_~tmp~1 := 1; 502#L306-1 check_#res := check_~tmp~1; 571#L318 main_#t~ret37 := check_#res;main_~c1~0 := main_#t~ret37;havoc main_#t~ret37;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 575#L387 assume !(0 == assert_~arg % 256); 572#L382 main_#t~post38 := main_~i2~0;main_~i2~0 := 1 + main_#t~post38;havoc main_#t~post38; 544#L360-2 [2021-10-21 20:07:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 2 times [2021-10-21 20:07:28,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:28,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621702587] [2021-10-21 20:07:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:28,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:07:28,983 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:07:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:07:29,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:07:29,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:29,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2027257471, now seen corresponding path program 1 times [2021-10-21 20:07:29,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:29,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638698589] [2021-10-21 20:07:29,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:29,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:07:29,028 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:07:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:07:29,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:07:29,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash -2125885643, now seen corresponding path program 1 times [2021-10-21 20:07:29,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:07:29,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114024112] [2021-10-21 20:07:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:07:29,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:07:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:07:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:07:29,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:07:29,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114024112] [2021-10-21 20:07:29,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114024112] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:07:29,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:07:29,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:07:29,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391788421] [2021-10-21 20:07:30,025 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:07:30,025 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:07:30,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:07:30,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:07:30,026 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:07:30,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:30,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:07:30,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:07:30,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2021-10-21 20:07:30,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:07:30,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:07:30,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:07:30,693 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:07:30,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:30,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:07:30,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:07:30,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:07:30,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:07:30,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:07:30,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:30,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:30,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:07:30,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:07:30,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:07:30,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:07:30,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:07:30,832 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:07:30,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-21 20:07:30,839 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:07:30,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:07:30,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:07:30,839 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:07:30,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:07:30,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:30,839 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:07:30,839 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:07:30,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2021-10-21 20:07:30,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:07:30,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:07:30,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:30,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:07:31,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:07:31,535 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:07:31,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:31,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:07:31,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:07:31,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:07:31,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:07:31,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:07:31,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:07:31,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:07:31,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:07:31,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:07:31,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:07:31,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:07:31,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:07:31,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:07:31,583 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:07:31,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:07:31,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:07:31,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:07:31,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:07:31,636 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:07:31,637 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:07:31,638 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] [2021-10-21 20:07:31,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:07:31,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:31,672 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:07:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:07:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:07:31,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:07:31,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:07:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:07:31,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:07:31,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:07:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:07:32,167 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 [2021-10-21 20:07:32,168 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 131 transitions. cyclomatic complexity: 38 Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:32,245 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 131 transitions. cyclomatic complexity: 38. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 158 states and 233 transitions. Complement of second has 4 states. [2021-10-21 20:07:32,246 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 [2021-10-21 20:07:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2021-10-21 20:07:32,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 131 transitions. Stem has 30 letters. Loop has 23 letters. [2021-10-21 20:07:32,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:07:32,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 131 transitions. Stem has 53 letters. Loop has 23 letters. [2021-10-21 20:07:32,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:07:32,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 131 transitions. Stem has 30 letters. Loop has 46 letters. [2021-10-21 20:07:32,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:07:32,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 233 transitions. [2021-10-21 20:07:32,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:07:32,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 0 states and 0 transitions. [2021-10-21 20:07:32,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:07:32,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:07:32,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:07:32,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:07:32,265 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:07:32,265 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:07:32,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:07:32,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:07:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:07:32,267 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:07:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:07:32,268 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-21 20:07:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:07:32,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-21 20:07:32,269 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:07:32,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:07:32,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:07:32,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:07:32,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:07:32,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:07:32,269 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:07:32,270 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:07:32,270 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:07:32,270 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:07:32,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:07:32,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:07:32,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:07:32,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:07:32 BoogieIcfgContainer [2021-10-21 20:07:32,277 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:07:32,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:07:32,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:07:32,278 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:07:32,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:07:27" (3/4) ... [2021-10-21 20:07:32,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:07:32,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:07:32,291 INFO L168 Benchmark]: Toolchain (without parser) took 5965.16 ms. Allocated memory was 132.1 MB in the beginning and 174.1 MB in the end (delta: 41.9 MB). Free memory was 98.1 MB in the beginning and 86.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 54.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:07:32,292 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:07:32,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.34 ms. Allocated memory is still 132.1 MB. Free memory was 98.1 MB in the beginning and 105.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:07:32,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.00 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 102.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:07:32,294 INFO L168 Benchmark]: Boogie Preprocessor took 54.12 ms. Allocated memory is still 132.1 MB. Free memory was 102.6 MB in the beginning and 100.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:07:32,295 INFO L168 Benchmark]: RCFGBuilder took 816.01 ms. Allocated memory is still 132.1 MB. Free memory was 100.9 MB in the beginning and 81.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:07:32,298 INFO L168 Benchmark]: BuchiAutomizer took 4602.43 ms. Allocated memory was 132.1 MB in the beginning and 174.1 MB in the end (delta: 41.9 MB). Free memory was 80.7 MB in the beginning and 87.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:07:32,299 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 174.1 MB. Free memory was 87.4 MB in the beginning and 86.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:07:32,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 424.34 ms. Allocated memory is still 132.1 MB. Free memory was 98.1 MB in the beginning and 105.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.00 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 102.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.12 ms. Allocated memory is still 132.1 MB. Free memory was 102.6 MB in the beginning and 100.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 816.01 ms. Allocated memory is still 132.1 MB. Free memory was 100.9 MB in the beginning and 81.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4602.43 ms. Allocated memory was 132.1 MB in the beginning and 174.1 MB in the end (delta: 41.9 MB). Free memory was 80.7 MB in the beginning and 87.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 174.1 MB. Free memory was 87.4 MB in the beginning and 86.3 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 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 15 + -2 * i2 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 32.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 64 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 94 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 418 SDtfs, 337 SDslu, 930 SDs, 0 SdLazy, 36 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf100 lsp34 ukn100 mio100 lsp100 div127 bol100 ite100 ukn100 eq178 hnf85 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 101ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:07:32,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:32,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45c94fd7-efb5-41b2-89d2-e81472509448/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...