./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y --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 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:33:33,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:33:33,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:33:33,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:33:33,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:33:33,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:33:33,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:33:33,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:33:33,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:33:33,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:33:33,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:33:33,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:33:33,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:33:33,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:33:34,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:33:34,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:33:34,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:33:34,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:33:34,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:33:34,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:33:34,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:33:34,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:33:34,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:33:34,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:33:34,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:33:34,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:33:34,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:33:34,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:33:34,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:33:34,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:33:34,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:33:34,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:33:34,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:33:34,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:33:34,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:33:34,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:33:34,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:33:34,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:33:34,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:33:34,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:33:34,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:33:34,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 17:33:34,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:33:34,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:33:34,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:33:34,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:33:34,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:33:34,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:33:34,137 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:33:34,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 17:33:34,137 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 17:33:34,138 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 17:33:34,139 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 17:33:34,140 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 17:33:34,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 17:33:34,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:33:34,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:33:34,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:33:34,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:33:34,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:33:34,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:33:34,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 17:33:34,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 17:33:34,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 17:33:34,143 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:33:34,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:33:34,144 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 17:33:34,144 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:33:34,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 17:33:34,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:33:34,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:33:34,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:33:34,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:33:34,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:33:34,149 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 17:33:34,149 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_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 894c556b0f4feb663ec35a01a2d06acf931df74aff57a717fa48cbd5e0bf347b [2021-11-13 17:33:34,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:33:34,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:33:34,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:33:34,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:33:34,552 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:33:34,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loops/terminator_02-2.c [2021-11-13 17:33:34,670 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/data/0821afc3e/5e9186638ec6433eaaba71ff4fc11a02/FLAGf613b3954 [2021-11-13 17:33:35,361 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:33:35,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/sv-benchmarks/c/loops/terminator_02-2.c [2021-11-13 17:33:35,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/data/0821afc3e/5e9186638ec6433eaaba71ff4fc11a02/FLAGf613b3954 [2021-11-13 17:33:35,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/data/0821afc3e/5e9186638ec6433eaaba71ff4fc11a02 [2021-11-13 17:33:35,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:33:35,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:33:35,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:33:35,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:33:35,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:33:35,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:35" (1/1) ... [2021-11-13 17:33:35,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326e4760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:35, skipping insertion in model container [2021-11-13 17:33:35,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:35" (1/1) ... [2021-11-13 17:33:35,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:33:35,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:33:35,975 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_b97f6f27-f159-4b8e-b09e-2a14b157cb59/sv-benchmarks/c/loops/terminator_02-2.c[414,427] [2021-11-13 17:33:35,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:33:35,999 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:33:36,015 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_b97f6f27-f159-4b8e-b09e-2a14b157cb59/sv-benchmarks/c/loops/terminator_02-2.c[414,427] [2021-11-13 17:33:36,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:33:36,038 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:33:36,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36 WrapperNode [2021-11-13 17:33:36,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:33:36,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:33:36,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:33:36,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:33:36,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:33:36,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:33:36,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:33:36,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:33:36,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:33:36,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:33:36,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:33:36,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:33:36,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (1/1) ... [2021-11-13 17:33:36,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:36,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:36,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 17:33:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:33:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:33:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:33:36,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:33:36,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:33:36,563 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 17:33:36,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:36 BoogieIcfgContainer [2021-11-13 17:33:36,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:33:36,567 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 17:33:36,567 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 17:33:36,572 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 17:33:36,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:33:36,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 05:33:35" (1/3) ... [2021-11-13 17:33:36,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e3d8f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:33:36, skipping insertion in model container [2021-11-13 17:33:36,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:33:36,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:36" (2/3) ... [2021-11-13 17:33:36,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e3d8f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:33:36, skipping insertion in model container [2021-11-13 17:33:36,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:33:36,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:36" (3/3) ... [2021-11-13 17:33:36,578 INFO L388 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2021-11-13 17:33:36,638 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 17:33:36,638 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 17:33:36,638 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 17:33:36,639 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 17:33:36,639 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 17:33:36,639 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 17:33:36,639 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 17:33:36,639 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 17:33:36,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) [2021-11-13 17:33:36,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:33:36,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:33:36,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:33:36,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-13 17:33:36,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:33:36,693 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 17:33:36,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) [2021-11-13 17:33:36,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:33:36,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:33:36,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:33:36,705 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-13 17:33:36,705 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:33:36,716 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~post10#1, main_#t~post11#1, main_#t~post12#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~z~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 9#L22true assume !!(main_~x~0#1 > -100); 12#L23true assume !!(main_~x~0#1 < 200); 13#L24true assume !!(main_~z~0#1 > 100); 6#L25true assume !!(main_~z~0#1 < 200); 17#L29-2true [2021-11-13 17:33:36,716 INFO L793 eck$LassoCheckResult]: Loop: 17#L29-2true assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 7#L29true assume 0 != main_~tmp~0#1 % 256;main_#t~post10#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 17#L29-2true [2021-11-13 17:33:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:36,746 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2021-11-13 17:33:36,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:36,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842187909] [2021-11-13 17:33:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:36,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:36,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:36,974 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:36,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:36,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2021-11-13 17:33:36,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:36,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896433319] [2021-11-13 17:33:36,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:36,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:37,009 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:37,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:37,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:37,038 INFO L85 PathProgramCache]: Analyzing trace with hash 179567792, now seen corresponding path program 1 times [2021-11-13 17:33:37,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:37,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251431605] [2021-11-13 17:33:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:37,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:37,082 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:37,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:37,224 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:37,225 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:37,225 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:37,225 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:37,226 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:33:37,226 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:37,226 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:37,226 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:37,227 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2021-11-13 17:33:37,227 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:37,227 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:37,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,458 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:37,459 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:33:37,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:37,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:37,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:37,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:37,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:37,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 17:33:37,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-13 17:33:37,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:37,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:37,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:37,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:33:37,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:37,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 17:33:37,656 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:33:37,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:37,665 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:37,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:37,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:37,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:37,666 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:33:37,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:37,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:37,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:37,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2021-11-13 17:33:37,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:37,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:37,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:37,848 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:37,855 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:33:37,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:37,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:37,858 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:37,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:37,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:37,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:37,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:37,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:37,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:37,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:37,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:37,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 17:33:37,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:33:37,907 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:33:37,907 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 17:33:37,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:37,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:37,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:37,947 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:33:37,947 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:33:37,948 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:33:37,949 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2021-11-13 17:33:37,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 17:33:37,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:37,999 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:33:38,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:38,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:33:38,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:38,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:38,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:38,211 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 17:33:38,214 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:38,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 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). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 43 states and 56 transitions. Complement of second has 8 states. [2021-11-13 17:33:38,301 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 [2021-11-13 17:33:38,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2021-11-13 17:33:38,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-13 17:33:38,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:38,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-13 17:33:38,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:38,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-13 17:33:38,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:38,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 56 transitions. [2021-11-13 17:33:38,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:33:38,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 12 states and 15 transitions. [2021-11-13 17:33:38,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-13 17:33:38,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-13 17:33:38,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-11-13 17:33:38,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:33:38,341 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-13 17:33:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-11-13 17:33:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-13 17:33:38,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-11-13 17:33:38,380 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-13 17:33:38,381 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-13 17:33:38,381 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 17:33:38,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-11-13 17:33:38,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:33:38,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:33:38,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:33:38,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:38,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:33:38,387 INFO L791 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~post10#1, main_#t~post11#1, main_#t~post12#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~z~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 110#L22 assume !!(main_~x~0#1 > -100); 111#L23 assume !!(main_~x~0#1 < 200); 120#L24 assume !!(main_~z~0#1 > 100); 114#L25 assume !!(main_~z~0#1 < 200); 115#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 116#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post11#1 := main_~x~0#1;main_~x~0#1 := main_#t~post11#1 - 1;havoc main_#t~post11#1;main_#t~post12#1 := main_~z~0#1;main_~z~0#1 := main_#t~post12#1 - 1;havoc main_#t~post12#1; 117#L29-2 [2021-11-13 17:33:38,387 INFO L793 eck$LassoCheckResult]: Loop: 117#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 121#L29 assume 0 != main_~tmp~0#1 % 256;main_#t~post10#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 117#L29-2 [2021-11-13 17:33:38,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:38,391 INFO L85 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 1 times [2021-11-13 17:33:38,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:38,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374871385] [2021-11-13 17:33:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:38,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:38,439 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:38,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:38,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 2 times [2021-11-13 17:33:38,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:38,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505499779] [2021-11-13 17:33:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:38,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:38,471 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:38,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:38,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:38,479 INFO L85 PathProgramCache]: Analyzing trace with hash 765959189, now seen corresponding path program 1 times [2021-11-13 17:33:38,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:38,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323883528] [2021-11-13 17:33:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:38,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:38,500 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:38,522 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:38,567 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:38,568 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:38,568 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:38,568 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:38,568 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:33:38,568 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:38,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:38,569 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:38,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2021-11-13 17:33:38,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:38,569 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:38,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,691 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:38,691 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:33:38,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:38,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:38,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:38,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:38,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:38,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 17:33:38,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:33:38,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 17:33:38,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:38,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:38,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:38,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:38,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:38,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:38,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 17:33:38,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:38,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:38,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:38,842 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:38,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 17:33:38,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:33:38,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:38,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:38,952 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:33:38,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:38,959 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:38,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:38,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:38,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:38,959 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:33:38,959 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:38,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:38,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:38,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2021-11-13 17:33:38,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:38,960 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:38,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:38,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,072 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:39,072 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:33:39,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:39,074 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:39,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 17:33:39,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:39,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:39,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:39,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:39,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:39,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:39,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:39,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:39,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:39,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-13 17:33:39,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:39,140 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:39,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 17:33:39,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:39,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:39,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:39,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:39,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:39,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:39,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:39,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:39,184 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:33:39,187 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:33:39,187 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 17:33:39,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:39,193 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:39,196 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:33:39,196 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:33:39,196 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:33:39,196 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2021-11-13 17:33:39,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 17:33:39,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-13 17:33:39,247 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:33:39,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:39,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:33:39,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:39,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:39,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:39,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:39,376 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 17:33:39,377 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:39,403 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 16 states and 21 transitions. Complement of second has 5 states. [2021-11-13 17:33:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 17:33:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-11-13 17:33:39,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-13 17:33:39,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:39,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-11-13 17:33:39,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:39,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2021-11-13 17:33:39,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:39,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2021-11-13 17:33:39,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:33:39,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 21 transitions. [2021-11-13 17:33:39,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-13 17:33:39,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-13 17:33:39,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-11-13 17:33:39,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:33:39,414 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-11-13 17:33:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-11-13 17:33:39,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-13 17:33:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-11-13 17:33:39,418 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-11-13 17:33:39,418 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-11-13 17:33:39,418 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 17:33:39,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-11-13 17:33:39,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:33:39,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:33:39,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:33:39,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:39,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:33:39,424 INFO L791 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 192#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~post10#1, main_#t~post11#1, main_#t~post12#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~z~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 189#L22 assume !!(main_~x~0#1 > -100); 190#L23 assume !!(main_~x~0#1 < 200); 195#L24 assume !!(main_~z~0#1 > 100); 193#L25 assume !!(main_~z~0#1 < 200); 194#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 196#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post11#1 := main_~x~0#1;main_~x~0#1 := main_#t~post11#1 - 1;havoc main_#t~post11#1;main_#t~post12#1 := main_~z~0#1;main_~z~0#1 := main_#t~post12#1 - 1;havoc main_#t~post12#1; 197#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 202#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post11#1 := main_~x~0#1;main_~x~0#1 := main_#t~post11#1 - 1;havoc main_#t~post11#1;main_#t~post12#1 := main_~z~0#1;main_~z~0#1 := main_#t~post12#1 - 1;havoc main_#t~post12#1; 200#L29-2 [2021-11-13 17:33:39,424 INFO L793 eck$LassoCheckResult]: Loop: 200#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 201#L29 assume 0 != main_~tmp~0#1 % 256;main_#t~post10#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 200#L29-2 [2021-11-13 17:33:39,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash 765959191, now seen corresponding path program 2 times [2021-11-13 17:33:39,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:39,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117703872] [2021-11-13 17:33:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:39,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:39,450 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:39,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:39,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 3 times [2021-11-13 17:33:39,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:39,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216786862] [2021-11-13 17:33:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:39,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:39,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:39,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:39,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1647375930, now seen corresponding path program 2 times [2021-11-13 17:33:39,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:39,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795979782] [2021-11-13 17:33:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:39,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:39,552 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:39,572 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:39,625 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:39,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:39,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:39,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:39,626 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:33:39,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:39,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:39,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2021-11-13 17:33:39,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:39,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:39,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,734 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:39,734 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:33:39,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:39,736 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:39,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 17:33:39,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:39,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:39,767 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:33:39,767 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0#1=101} Honda state: {ULTIMATE.start_main_~z~0#1=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 17:33:39,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:39,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:39,815 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:39,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:39,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:39,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 17:33:39,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:39,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:39,860 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:39,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-13 17:33:39,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:33:39,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:39,906 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:33:39,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:39,909 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:39,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:39,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:39,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:39,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:33:39,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:39,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:39,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:39,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2021-11-13 17:33:39,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:39,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:39,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:39,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:40,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:40,042 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:33:40,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:40,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:40,044 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:40,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-13 17:33:40,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:40,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:40,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:40,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:40,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:40,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:40,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:40,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:40,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:40,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:40,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:40,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:40,127 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:40,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:40,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:40,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:40,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:40,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:40,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:40,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:40,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:40,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-13 17:33:40,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:40,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:40,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:40,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:40,215 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:40,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:40,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:40,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:40,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:40,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:40,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:40,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:40,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:40,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-13 17:33:40,254 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:33:40,257 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:33:40,257 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 17:33:40,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:40,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:40,259 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:40,266 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:33:40,266 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:33:40,266 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:33:40,266 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 199 Supporting invariants [] [2021-11-13 17:33:40,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-13 17:33:40,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:40,299 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:33:40,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:40,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:33:40,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:40,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:40,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:40,423 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 17:33:40,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,451 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 25 transitions. Complement of second has 5 states. [2021-11-13 17:33:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 17:33:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-11-13 17:33:40,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-11-13 17:33:40,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:40,456 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 17:33:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:40,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:40,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:33:40,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:40,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:40,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:40,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:40,646 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 17:33:40,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 25 transitions. Complement of second has 5 states. [2021-11-13 17:33:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 17:33:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-11-13 17:33:40,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-11-13 17:33:40,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:40,661 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 17:33:40,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:40,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:33:40,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:40,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:40,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:40,766 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 17:33:40,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 28 transitions. Complement of second has 4 states. [2021-11-13 17:33:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 17:33:40,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-11-13 17:33:40,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2021-11-13 17:33:40,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:40,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2021-11-13 17:33:40,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:40,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2021-11-13 17:33:40,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:40,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2021-11-13 17:33:40,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 17:33:40,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 24 transitions. [2021-11-13 17:33:40,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-13 17:33:40,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-13 17:33:40,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-11-13 17:33:40,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:33:40,787 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-13 17:33:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-11-13 17:33:40,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2021-11-13 17:33:40,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:40,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-13 17:33:40,789 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-13 17:33:40,789 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-13 17:33:40,790 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 17:33:40,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-11-13 17:33:40,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 17:33:40,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:33:40,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:33:40,791 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-13 17:33:40,791 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:33:40,791 INFO L791 eck$LassoCheckResult]: Stem: 403#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 404#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~post10#1, main_#t~post11#1, main_#t~post12#1, main_~tmp~0#1, main_~x~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~z~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 401#L22 assume !!(main_~x~0#1 > -100); 402#L23 assume !!(main_~x~0#1 < 200); 410#L24 assume !!(main_~z~0#1 > 100); 405#L25 assume !!(main_~z~0#1 < 200); 406#L29-2 [2021-11-13 17:33:40,791 INFO L793 eck$LassoCheckResult]: Loop: 406#L29-2 assume !!(main_~x~0#1 < 100 && main_~z~0#1 > 100);main_~tmp~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 407#L29 assume !(0 != main_~tmp~0#1 % 256);main_#t~post11#1 := main_~x~0#1;main_~x~0#1 := main_#t~post11#1 - 1;havoc main_#t~post11#1;main_#t~post12#1 := main_~z~0#1;main_~z~0#1 := main_#t~post12#1 - 1;havoc main_#t~post12#1; 406#L29-2 [2021-11-13 17:33:40,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:40,792 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2021-11-13 17:33:40,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:40,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42283874] [2021-11-13 17:33:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:40,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:40,812 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:40,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2021-11-13 17:33:40,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:40,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611024755] [2021-11-13 17:33:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:40,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:40,843 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:40,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:40,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:40,856 INFO L85 PathProgramCache]: Analyzing trace with hash 179567794, now seen corresponding path program 3 times [2021-11-13 17:33:40,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:33:40,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393680422] [2021-11-13 17:33:40,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:40,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:33:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:40,865 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:33:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:33:40,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:33:40,934 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:40,934 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:40,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:40,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:40,935 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:33:40,935 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:40,935 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:40,935 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:40,935 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2021-11-13 17:33:40,935 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:40,935 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:40,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:40,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:40,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:40,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:40,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:41,052 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:41,053 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:33:41,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,054 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:41,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-13 17:33:41,090 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:33:41,090 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post12#1=0} Honda state: {ULTIMATE.start_main_#t~post12#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 17:33:41,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:41,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,116 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:41,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-13 17:33:41,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:41,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,157 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-13 17:33:41,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:33:41,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,184 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:33:41,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=99} Honda state: {ULTIMATE.start_main_~x~0#1=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 13, 8] Nus: [1, 1] [2021-11-13 17:33:41,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:41,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,212 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-13 17:33:41,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:41,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,234 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:33:41,234 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0#1=0, ULTIMATE.start_main_#t~nondet9#1=0} Honda state: {ULTIMATE.start_main_~tmp~0#1=0, ULTIMATE.start_main_#t~nondet9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 17:33:41,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-13 17:33:41,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,266 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-13 17:33:41,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:41,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,282 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:33:41,282 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post11#1=0} Honda state: {ULTIMATE.start_main_#t~post11#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 17:33:41,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-11-13 17:33:41,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,308 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-13 17:33:41,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:33:41,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-13 17:33:41,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,347 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-13 17:33:41,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:33:41,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:33:41,390 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:33:41,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-13 17:33:41,393 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:33:41,393 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:33:41,393 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:33:41,393 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:33:41,394 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:33:41,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,394 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:33:41,394 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:33:41,394 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2021-11-13 17:33:41,394 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:33:41,394 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:33:41,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:41,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:41,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:41,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:41,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:33:41,513 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:33:41,513 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:33:41,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,515 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:41,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:41,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:41,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:41,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:41,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:41,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:41,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:41,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-13 17:33:41,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:41,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-11-13 17:33:41,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,594 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-13 17:33:41,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:41,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:41,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:41,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:41,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:41,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:41,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:41,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:41,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:41,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-13 17:33:41,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,647 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-13 17:33:41,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:41,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:41,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:41,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:41,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:41,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:41,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:41,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:41,690 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:41,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-13 17:33:41,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,718 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-13 17:33:41,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:41,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:41,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:41,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:41,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:41,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:41,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:41,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:41,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:33:41,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-11-13 17:33:41,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,759 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:33:41,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-13 17:33:41,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:33:41,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:33:41,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:33:41,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:33:41,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:33:41,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:33:41,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:33:41,781 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:33:41,783 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-13 17:33:41,784 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 17:33:41,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:33:41,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:33:41,785 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:33:41,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-13 17:33:41,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:33:41,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:33:41,786 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:33:41,786 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2021-11-13 17:33:41,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:41,814 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:33:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:41,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:33:41,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:41,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:33:41,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:41,921 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-13 17:33:41,922 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:41,942 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 16 states and 22 transitions. Complement of second has 4 states. [2021-11-13 17:33:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 17:33:41,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:33:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-11-13 17:33:41,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-13 17:33:41,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:41,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-13 17:33:41,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:41,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-13 17:33:41,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:33:41,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2021-11-13 17:33:41,949 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:33:41,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-11-13 17:33:41,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 17:33:41,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 17:33:41,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 17:33:41,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:33:41,950 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:33:41,951 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:33:41,951 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:33:41,951 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-13 17:33:41,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:33:41,951 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:33:41,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 17:33:41,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 05:33:41 BoogieIcfgContainer [2021-11-13 17:33:41,975 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 17:33:41,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:33:41,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:33:41,976 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:33:41,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:36" (3/4) ... [2021-11-13 17:33:41,980 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 17:33:41,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:33:41,982 INFO L158 Benchmark]: Toolchain (without parser) took 6275.15ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 60.4MB in the beginning and 49.9MB in the end (delta: 10.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2021-11-13 17:33:41,983 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:41,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.79ms. Allocated memory is still 94.4MB. Free memory was 60.2MB in the beginning and 70.7MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 17:33:41,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.55ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:33:41,985 INFO L158 Benchmark]: Boogie Preprocessor took 53.09ms. Allocated memory is still 94.4MB. Free memory was 69.5MB in the beginning and 68.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:41,986 INFO L158 Benchmark]: RCFGBuilder took 422.24ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 59.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:33:41,986 INFO L158 Benchmark]: BuchiAutomizer took 5407.96ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 58.6MB in the beginning and 50.5MB in the end (delta: 8.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2021-11-13 17:33:41,987 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 123.7MB. Free memory was 50.5MB in the beginning and 49.9MB in the end (delta: 540.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:33:42,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.79ms. Allocated memory is still 94.4MB. Free memory was 60.2MB in the beginning and 70.7MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.55ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.09ms. Allocated memory is still 94.4MB. Free memory was 69.5MB in the beginning and 68.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 422.24ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 59.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5407.96ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 58.6MB in the beginning and 50.5MB in the end (delta: 8.1MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 123.7MB. Free memory was 50.5MB in the beginning and 49.9MB in the end (delta: 540.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 199 + -2 * x and consists of 5 locations. One deterministic module has affine ranking function 199 + -2 * x and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function 199 + -2 * x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 71.17ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 57.50ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 60 mSDtfsCounter, 41 mSolverCounterSat, 8.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 92ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-13 17:33:42,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:42,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97f6f27-f159-4b8e-b09e-2a14b157cb59/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE