./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/count_by_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/count_by_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg --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 14fb22a4db5f29ac6c79e8533b9a516d22dc65273f523f7802f7a661fa835fd1 ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:56:51,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:56:51,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:56:51,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:56:51,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:56:51,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:56:51,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:56:51,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:56:51,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:56:51,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:56:51,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:56:51,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:56:51,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:56:51,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:56:52,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:56:52,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:56:52,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:56:52,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:56:52,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:56:52,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:56:52,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:56:52,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:56:52,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:56:52,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:56:52,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:56:52,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:56:52,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:56:52,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:56:52,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:56:52,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:56:52,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:56:52,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:56:52,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:56:52,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:56:52,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:56:52,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:56:52,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:56:52,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:56:52,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:56:52,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:56:52,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:56:52,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:56:52,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:56:52,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:56:52,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:56:52,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:56:52,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:56:52,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:56:52,130 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:56:52,131 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:56:52,131 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:56:52,131 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:56:52,133 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:56:52,133 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:56:52,133 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:56:52,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:56:52,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:56:52,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:56:52,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:56:52,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:56:52,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:56:52,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:56:52,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:56:52,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:56:52,136 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:56:52,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:56:52,137 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:56:52,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:56:52,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:56:52,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:56:52,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:56:52,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:56:52,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:56:52,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:56:52,142 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:56:52,143 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_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14fb22a4db5f29ac6c79e8533b9a516d22dc65273f523f7802f7a661fa835fd1 [2021-10-28 08:56:52,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:56:52,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:56:52,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:56:52,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:56:52,495 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:56:52,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loop-new/count_by_1.i [2021-10-28 08:56:52,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/data/2bab8f605/d595219db471452cb0d931d5db81f965/FLAGb95c11412 [2021-10-28 08:56:53,135 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:56:53,137 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/sv-benchmarks/c/loop-new/count_by_1.i [2021-10-28 08:56:53,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/data/2bab8f605/d595219db471452cb0d931d5db81f965/FLAGb95c11412 [2021-10-28 08:56:53,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/data/2bab8f605/d595219db471452cb0d931d5db81f965 [2021-10-28 08:56:53,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:56:53,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:56:53,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:56:53,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:56:53,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:56:53,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1224bf50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53, skipping insertion in model container [2021-10-28 08:56:53,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:56:53,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:56:53,851 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_d386ad0e-30bb-42dc-a78c-33c3426a2184/sv-benchmarks/c/loop-new/count_by_1.i[891,904] [2021-10-28 08:56:53,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:56:53,875 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:56:53,901 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_d386ad0e-30bb-42dc-a78c-33c3426a2184/sv-benchmarks/c/loop-new/count_by_1.i[891,904] [2021-10-28 08:56:53,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:56:53,925 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:56:53,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53 WrapperNode [2021-10-28 08:56:53,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:56:53,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:56:53,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:56:53,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:56:53,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:56:53,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:56:53,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:56:53,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:56:53,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:53,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:54,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:54,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:56:54,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:56:54,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:56:54,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:56:54,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (1/1) ... [2021-10-28 08:56:54,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:54,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:56:54,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:56:54,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:56:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:56:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:56:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:56:54,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:56:54,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:56:54,272 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 08:56:54,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:56:54 BoogieIcfgContainer [2021-10-28 08:56:54,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:56:54,275 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:56:54,275 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:56:54,279 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:56:54,280 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:56:54,280 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:56:53" (1/3) ... [2021-10-28 08:56:54,281 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@225e46fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:56:54, skipping insertion in model container [2021-10-28 08:56:54,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:56:54,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:56:53" (2/3) ... [2021-10-28 08:56:54,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@225e46fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:56:54, skipping insertion in model container [2021-10-28 08:56:54,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:56:54,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:56:54" (3/3) ... [2021-10-28 08:56:54,284 INFO L389 chiAutomizerObserver]: Analyzing ICFG count_by_1.i [2021-10-28 08:56:54,332 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:56:54,332 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:56:54,332 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:56:54,332 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:56:54,332 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:56:54,332 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:56:54,332 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:56:54,333 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:56:54,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:56:54,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:56:54,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:56:54,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:56:54,377 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 08:56:54,377 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:56:54,377 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:56:54,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:56:54,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:56:54,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:56:54,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:56:54,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 08:56:54,380 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:56:54,388 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_#t~post3, main_~i~0;havoc main_~i~0;main_~i~0 := 0; 12#L26-3true [2021-10-28 08:56:54,388 INFO L793 eck$LassoCheckResult]: Loop: 12#L26-3true assume !!(main_~i~0 < 1000000); 8#L26-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12#L26-3true [2021-10-28 08:56:54,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:56:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 08:56:54,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:56:54,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550639011] [2021-10-28 08:56:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:56:54,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:56:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:56:54,505 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:56:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:56:54,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:56:54,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:56:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-28 08:56:54,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:56:54,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643605851] [2021-10-28 08:56:54,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:56:54,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:56:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:56:54,555 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:56:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:56:54,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:56:54,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:56:54,564 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-28 08:56:54,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:56:54,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424452112] [2021-10-28 08:56:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:56:54,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:56:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:56:54,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:56:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:56:54,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:56:54,660 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:56:54,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:56:54,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:56:54,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:56:54,661 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:56:54,661 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:54,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:56:54,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:56:54,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1.i_Iteration1_Loop [2021-10-28 08:56:54,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:56:54,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:56:54,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:56:54,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:56:54,734 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:56:54,735 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:56:54,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:54,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:56:54,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:56:54,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:56:54,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:56:54,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:56:54,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:56:54,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:54,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:56:54,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:56:54,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:56:54,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:56:54,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:56:54,963 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:56:54,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:56:54,970 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:56:54,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:56:54,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:56:54,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:56:54,970 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:56:54,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:54,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:56:54,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:56:54,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1.i_Iteration1_Loop [2021-10-28 08:56:54,971 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:56:54,971 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:56:54,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:56:54,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:56:55,031 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:56:55,036 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:56:55,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:55,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:56:55,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:56:55,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:56:55,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:56:55,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:56:55,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:56:55,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:56:55,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:56:55,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:56:55,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:56:55,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:56:55,089 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:56:55,098 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:56:55,098 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:56:55,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:56:55,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:56:55,101 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:56:55,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:56:55,104 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:56:55,104 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:56:55,104 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:56:55,105 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1999999 Supporting invariants [] [2021-10-28 08:56:55,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:56:55,137 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:56:55,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:56:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:56:55,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:56:55,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:56:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:56:55,248 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:56:55,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:56:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:56:55,334 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 [2021-10-28 08:56:55,336 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:56:55,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 7 states. [2021-10-28 08:56:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:56:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:56:55,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2021-10-28 08:56:55,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 08:56:55,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:56:55,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 08:56:55,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:56:55,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 08:56:55,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:56:55,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-10-28 08:56:55,420 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:56:55,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-10-28 08:56:55,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:56:55,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:56:55,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:56:55,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:56:55,424 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:56:55,424 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:56:55,424 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:56:55,424 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:56:55,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:56:55,425 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:56:55,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:56:55,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:56:55 BoogieIcfgContainer [2021-10-28 08:56:55,430 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:56:55,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:56:55,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:56:55,431 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:56:55,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:56:54" (3/4) ... [2021-10-28 08:56:55,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:56:55,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:56:55,436 INFO L168 Benchmark]: Toolchain (without parser) took 1924.28 ms. Allocated memory is still 107.0 MB. Free memory was 72.8 MB in the beginning and 38.0 MB in the end (delta: 34.8 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:55,437 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 51.1 MB in the beginning and 51.1 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:56:55,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.94 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 84.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:55,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.20 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 82.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:55,439 INFO L168 Benchmark]: Boogie Preprocessor took 35.99 ms. Allocated memory is still 107.0 MB. Free memory was 82.5 MB in the beginning and 81.5 MB in the end (delta: 996.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:56:55,440 INFO L168 Benchmark]: RCFGBuilder took 265.38 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 73.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:55,441 INFO L168 Benchmark]: BuchiAutomizer took 1155.14 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 38.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:55,441 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 107.0 MB. Free memory was 38.5 MB in the beginning and 38.0 MB in the end (delta: 497.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:56:55,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 51.1 MB in the beginning and 51.1 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 411.94 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 84.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.20 ms. Allocated memory is still 107.0 MB. Free memory was 84.0 MB in the beginning and 82.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.99 ms. Allocated memory is still 107.0 MB. Free memory was 82.5 MB in the beginning and 81.5 MB in the end (delta: 996.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 265.38 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 73.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1155.14 ms. Allocated memory is still 107.0 MB. Free memory was 72.6 MB in the beginning and 38.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.61 ms. Allocated memory is still 107.0 MB. Free memory was 38.5 MB in the beginning and 38.0 MB in the end (delta: 497.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 1999999 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 9 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 67ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:56:55,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:56:55,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d386ad0e-30bb-42dc-a78c-33c3426a2184/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...