./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c651b2cf12ef151f8c483095acc3023b343707b6f3267a95c45195266139a503 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:13:42,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:13:42,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:13:42,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:13:42,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:13:42,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:13:42,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:13:42,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:13:42,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:13:42,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:13:42,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:13:42,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:13:42,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:13:42,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:13:42,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:13:42,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:13:42,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:13:42,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:13:42,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:13:42,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:13:42,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:13:42,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:13:42,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:13:42,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:13:42,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:13:42,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:13:42,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:13:42,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:13:42,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:13:42,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:13:42,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:13:42,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:13:42,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:13:42,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:13:42,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:13:42,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:13:42,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:13:42,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:13:42,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:13:42,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:13:42,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:13:42,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:13:42,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:13:42,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:13:42,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:13:42,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:13:42,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:13:42,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:13:42,399 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:13:42,399 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:13:42,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:13:42,400 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:13:42,400 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:13:42,400 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:13:42,400 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:13:42,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:13:42,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:13:42,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:13:42,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:13:42,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:13:42,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:13:42,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:13:42,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:13:42,403 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:13:42,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:13:42,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:13:42,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:13:42,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:13:42,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:13:42,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:13:42,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:13:42,407 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:13:42,407 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_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c651b2cf12ef151f8c483095acc3023b343707b6f3267a95c45195266139a503 [2021-10-28 09:13:42,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:13:42,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:13:42,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:13:42,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:13:42,744 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:13:42,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/PastaC3.c [2021-10-28 09:13:42,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/data/fb2e99985/cbb6bcb4b76e4f448f139dba780dfd84/FLAG3ee1483d0 [2021-10-28 09:13:43,432 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:13:43,433 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/sv-benchmarks/c/termination-restricted-15/PastaC3.c [2021-10-28 09:13:43,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/data/fb2e99985/cbb6bcb4b76e4f448f139dba780dfd84/FLAG3ee1483d0 [2021-10-28 09:13:43,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/data/fb2e99985/cbb6bcb4b76e4f448f139dba780dfd84 [2021-10-28 09:13:43,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:13:43,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:13:43,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:13:43,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:13:43,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:13:43,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:13:43" (1/1) ... [2021-10-28 09:13:43,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a405639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:43, skipping insertion in model container [2021-10-28 09:13:43,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:13:43" (1/1) ... [2021-10-28 09:13:43,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:13:43,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:13:44,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:13:44,057 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:13:44,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:13:44,087 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:13:44,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44 WrapperNode [2021-10-28 09:13:44,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:13:44,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:13:44,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:13:44,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:13:44,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:13:44,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:13:44,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:13:44,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:13:44,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:13:44,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:13:44,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:13:44,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:13:44,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (1/1) ... [2021-10-28 09:13:44,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:44,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:44,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:44,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:13:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:13:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:13:44,402 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:13:44,403 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:13:44,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:44 BoogieIcfgContainer [2021-10-28 09:13:44,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:13:44,406 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:13:44,406 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:13:44,411 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:13:44,411 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:13:44,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:13:43" (1/3) ... [2021-10-28 09:13:44,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@253c6fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:13:44, skipping insertion in model container [2021-10-28 09:13:44,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:13:44,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:44" (2/3) ... [2021-10-28 09:13:44,414 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@253c6fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:13:44, skipping insertion in model container [2021-10-28 09:13:44,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:13:44,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:44" (3/3) ... [2021-10-28 09:13:44,416 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaC3.c [2021-10-28 09:13:44,469 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:13:44,469 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:13:44,469 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:13:44,470 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:13:44,470 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:13:44,470 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:13:44,470 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:13:44,470 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:13:44,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:44,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:13:44,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:44,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:44,512 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:13:44,513 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:13:44,513 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:13:44,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:44,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:13:44,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:44,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:44,515 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:13:44,515 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:13:44,522 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L14-2true [2021-10-28 09:13:44,522 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~x~0 < main_~y~0); 7#L14true assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 8#L14-2true [2021-10-28 09:13:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:44,528 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:13:44,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:44,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306981636] [2021-10-28 09:13:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:44,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:44,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:44,645 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-28 09:13:44,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:44,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688395705] [2021-10-28 09:13:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:44,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:44,665 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:44,674 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:44,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-28 09:13:44,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:44,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654012480] [2021-10-28 09:13:44,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:44,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:44,688 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:44,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:44,786 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:44,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:44,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:44,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:44,788 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:13:44,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:44,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:44,788 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:44,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2021-10-28 09:13:44,789 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:44,789 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:44,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:44,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:44,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:44,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:44,949 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:13:44,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:44,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:44,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:44,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:44,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:44,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:13:45,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:45,021 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:45,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:13:45,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:45,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:45,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:45,109 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:45,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:13:45,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:45,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:45,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,243 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:13:45,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:45,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:13:45,479 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:13:45,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,495 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:45,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:45,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:45,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:45,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:45,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:45,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:45,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2021-10-28 09:13:45,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:45,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:45,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:45,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:45,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:45,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:45,601 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:45,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,622 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:13:45,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:45,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:45,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:45,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:45,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:45,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:45,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:45,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:45,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 09:13:45,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,720 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:13:45,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:45,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:45,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:45,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:45,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:45,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:45,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:45,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:45,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:45,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:45,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:45,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:45,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:45,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:45,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:45,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:45,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:13:45,852 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:45,863 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:13:45,863 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:13:45,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:45,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,867 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:45,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:13:45,900 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:45,901 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 09:13:45,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:13:45,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,943 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:13:45,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:45,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:45,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:46,012 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:46,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:46,059 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:13:46,061 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:46,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 23 states and 30 transitions. Complement of second has 6 states. [2021-10-28 09:13:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-28 09:13:46,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 09:13:46,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:46,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 09:13:46,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:46,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 09:13:46,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:46,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-28 09:13:46,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:13:46,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-28 09:13:46,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 09:13:46,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:13:46,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-28 09:13:46,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:46,152 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:13:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-28 09:13:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-28 09:13:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-10-28 09:13:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 09:13:46,185 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:13:46,186 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:13:46,186 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:13:46,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 09:13:46,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:13:46,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:46,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:46,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:13:46,189 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:13:46,189 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 64#L14-2 assume !!(main_~x~0 < main_~y~0); 65#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 66#L14-2 [2021-10-28 09:13:46,190 INFO L793 eck$LassoCheckResult]: Loop: 66#L14-2 assume !!(main_~x~0 < main_~y~0); 69#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 66#L14-2 [2021-10-28 09:13:46,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-28 09:13:46,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:46,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302750140] [2021-10-28 09:13:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:46,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:46,218 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:46,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:46,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-28 09:13:46,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:46,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657657977] [2021-10-28 09:13:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:46,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:46,250 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:46,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-28 09:13:46,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:46,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121788094] [2021-10-28 09:13:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:46,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:46,267 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:46,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:46,305 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:46,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:46,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:46,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:46,306 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:13:46,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:46,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:46,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2021-10-28 09:13:46,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:46,307 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:46,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:46,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:46,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:46,380 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:46,380 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:13:46,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:46,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:46,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:13:46,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:46,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:46,433 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:46,433 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:46,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:46,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:46,484 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:46,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:13:46,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:46,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:46,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:46,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:46,543 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:46,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:13:46,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:13:46,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:46,799 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:13:46,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:46,803 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:46,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:46,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:46,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:46,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:46,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:46,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:46,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2021-10-28 09:13:46,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:46,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:46,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:46,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:46,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:46,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:46,898 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:46,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:46,900 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:46,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:46,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:46,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:46,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:46,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:46,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:46,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:46,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:46,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:13:46,944 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:46,960 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:13:46,960 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:13:46,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:46,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:46,963 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:46,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:46,966 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:13:46,966 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:46,966 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 09:13:46,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:13:46,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:46,996 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:13:47,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:47,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:47,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:47,046 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:47,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:47,058 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:13:47,058 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:47,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 11 states and 16 transitions. Complement of second has 5 states. [2021-10-28 09:13:47,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:47,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 09:13:47,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 09:13:47,074 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:47,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 09:13:47,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:47,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 09:13:47,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:47,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-28 09:13:47,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:13:47,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 09:13:47,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 09:13:47,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:13:47,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-28 09:13:47,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:47,079 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 09:13:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-28 09:13:47,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 09:13:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 09:13:47,082 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 09:13:47,082 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 09:13:47,082 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:13:47,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-28 09:13:47,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:13:47,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:47,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:47,084 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 09:13:47,084 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:13:47,085 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 117#L14-2 assume !!(main_~x~0 < main_~y~0); 118#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 119#L14-2 assume !!(main_~x~0 < main_~y~0); 124#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 122#L14-2 [2021-10-28 09:13:47,085 INFO L793 eck$LassoCheckResult]: Loop: 122#L14-2 assume !!(main_~x~0 < main_~y~0); 123#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 122#L14-2 [2021-10-28 09:13:47,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:47,121 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-28 09:13:47,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:47,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257042506] [2021-10-28 09:13:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:47,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:47,140 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:47,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:47,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:47,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-28 09:13:47,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:47,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547010878] [2021-10-28 09:13:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:47,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:47,216 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:47,220 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:47,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:47,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2021-10-28 09:13:47,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:47,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316817337] [2021-10-28 09:13:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:47,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:47,239 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:47,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:47,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:47,308 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:47,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:47,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:47,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:47,308 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:13:47,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:47,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:47,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:47,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2021-10-28 09:13:47,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:47,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:47,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:47,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:47,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:47,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:47,393 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:47,393 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:13:47,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:47,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:47,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:47,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:13:47,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:47,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:47,419 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:47,419 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:47,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:47,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:47,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:47,459 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:47,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:13:47,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:47,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:47,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:47,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:47,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:47,521 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:47,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:13:47,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:13:47,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:47,799 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:13:47,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 09:13:47,807 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:47,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:47,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:47,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:47,807 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:47,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:47,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:47,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:47,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2021-10-28 09:13:47,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:47,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:47,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:47,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:47,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:47,892 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:47,893 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:47,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:47,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:47,895 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:47,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:47,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:47,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:47,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:47,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:47,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:47,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:47,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:13:47,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:47,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:47,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:48,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:48,001 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:48,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:13:48,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:48,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:48,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:48,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:48,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:48,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:48,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:48,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:48,032 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:48,039 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:13:48,039 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:13:48,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:48,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:48,041 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:48,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:13:48,053 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:48,055 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:13:48,055 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:48,055 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 09:13:48,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:48,092 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:13:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:48,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:48,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:48,181 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:13:48,181 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,195 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13 states and 20 transitions. Complement of second has 5 states. [2021-10-28 09:13:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 09:13:48,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 09:13:48,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:48,198 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:13:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:48,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,248 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:48,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:48,268 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:13:48,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,289 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13 states and 20 transitions. Complement of second has 5 states. [2021-10-28 09:13:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 09:13:48,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 09:13:48,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:48,291 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:13:48,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:48,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,339 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:48,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:48,360 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 1 loop predicates [2021-10-28 09:13:48,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 15 states and 23 transitions. Complement of second has 4 states. [2021-10-28 09:13:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 09:13:48,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 09:13:48,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:48,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 09:13:48,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:48,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 09:13:48,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:48,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-28 09:13:48,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:13:48,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-28 09:13:48,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 09:13:48,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 09:13:48,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 09:13:48,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:48,398 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 09:13:48,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 09:13:48,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-28 09:13:48,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:48,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-28 09:13:48,402 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 09:13:48,402 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 09:13:48,403 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:13:48,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-10-28 09:13:48,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:13:48,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:48,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:48,406 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:13:48,406 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:13:48,407 INFO L791 eck$LassoCheckResult]: Stem: 260#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 261#L14-2 [2021-10-28 09:13:48,407 INFO L793 eck$LassoCheckResult]: Loop: 261#L14-2 assume !!(main_~x~0 < main_~y~0); 262#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 261#L14-2 [2021-10-28 09:13:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-28 09:13:48,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:48,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261518006] [2021-10-28 09:13:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:48,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:48,430 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:48,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:48,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:48,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-10-28 09:13:48,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:48,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149668991] [2021-10-28 09:13:48,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:48,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:48,448 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:48,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:48,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:48,460 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2021-10-28 09:13:48,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:48,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614771906] [2021-10-28 09:13:48,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:48,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:48,469 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:48,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:48,519 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:48,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:48,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:48,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:48,519 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:13:48,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:48,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:48,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:48,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2021-10-28 09:13:48,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:48,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:48,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:48,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:48,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:48,579 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:48,579 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:13:48,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:48,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:48,581 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:48,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:13:48,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:48,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:48,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:48,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:48,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:48,630 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:48,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:13:48,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:13:48,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:48,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:13:48,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:48,937 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:48,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:48,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:48,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:48,938 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:48,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:48,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:48,938 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:48,938 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2021-10-28 09:13:48,938 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:48,938 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:48,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:48,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:48,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:49,009 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:49,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,010 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:49,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:49,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:49,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:49,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:49,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:49,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:49,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:49,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:13:49,047 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:49,062 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:13:49,062 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:13:49,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,064 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:49,070 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:13:49,070 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:49,070 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2021-10-28 09:13:49,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:13:49,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 09:13:49,105 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:13:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:49,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:49,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:49,139 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:49,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:49,150 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:13:49,151 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:49,167 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 11 states and 17 transitions. Complement of second has 5 states. [2021-10-28 09:13:49,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-10-28 09:13:49,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 09:13:49,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:49,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 09:13:49,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:49,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 09:13:49,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:49,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2021-10-28 09:13:49,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:13:49,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2021-10-28 09:13:49,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 09:13:49,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 09:13:49,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-28 09:13:49,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:49,172 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-28 09:13:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-28 09:13:49,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-28 09:13:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 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) [2021-10-28 09:13:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2021-10-28 09:13:49,174 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-28 09:13:49,174 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-28 09:13:49,174 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:13:49,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2021-10-28 09:13:49,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 09:13:49,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:49,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:49,176 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-28 09:13:49,176 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:13:49,176 INFO L791 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 306#L14-2 assume !!(main_~x~0 < main_~y~0); 311#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 312#L14-2 assume !!(main_~x~0 < main_~y~0); 307#L14 [2021-10-28 09:13:49,177 INFO L793 eck$LassoCheckResult]: Loop: 307#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 308#L14-2 assume !!(main_~x~0 < main_~y~0); 307#L14 [2021-10-28 09:13:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:49,177 INFO L85 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-28 09:13:49,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:49,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37860473] [2021-10-28 09:13:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:49,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:49,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:49,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:49,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-28 09:13:49,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:49,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275211171] [2021-10-28 09:13:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:49,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:49,207 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:49,215 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:49,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 3 times [2021-10-28 09:13:49,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:49,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714183348] [2021-10-28 09:13:49,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:49,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:49,230 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:49,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:49,271 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:49,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:49,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:49,272 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:49,272 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:13:49,272 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,272 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:49,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:49,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration5_Loop [2021-10-28 09:13:49,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:49,272 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:49,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,349 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:49,349 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:13:49,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,351 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:49,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:49,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:13:49,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:49,404 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:49,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:49,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,454 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:49,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:49,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:13:49,480 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:49,480 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:49,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:49,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,508 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:13:49,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:49,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:49,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:49,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,546 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:13:49,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:13:49,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:49,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:13:49,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 09:13:49,845 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:49,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:49,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:49,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:49,845 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:49,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,845 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:49,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:49,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration5_Loop [2021-10-28 09:13:49,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:49,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:49,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:49,916 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:49,917 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:49,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:49,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,918 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:49,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:13:49,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:49,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:49,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:49,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:49,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:49,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:49,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:50,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,013 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:50,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:50,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:50,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:50,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:50,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:50,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:50,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:13:50,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:50,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:13:50,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,085 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:50,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:50,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:50,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:50,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:50,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:50,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:50,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:50,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:13:50,107 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:50,109 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:13:50,109 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:13:50,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,112 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,114 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:50,114 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:13:50,114 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:50,114 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-28 09:13:50,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:13:50,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,162 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:13:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:50,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:50,204 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:50,290 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:13:50,307 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:50,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,334 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13 states and 17 transitions. Complement of second has 5 states. [2021-10-28 09:13:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:50,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 09:13:50,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:13:50,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:50,335 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:13:50,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:50,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:50,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:50,408 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:50,441 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 [2021-10-28 09:13:50,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:50,462 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 10 states and 14 transitions. Complement of second has 5 states. [2021-10-28 09:13:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:50,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 09:13:50,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:13:50,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:50,464 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:13:50,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:50,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:50,511 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:50,553 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 [2021-10-28 09:13:50,553 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:50,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20 transitions. Complement of second has 4 states. [2021-10-28 09:13:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:50,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 09:13:50,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:13:50,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:50,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 09:13:50,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:50,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 09:13:50,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:50,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-28 09:13:50,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 09:13:50,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-10-28 09:13:50,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 09:13:50,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 09:13:50,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-28 09:13:50,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:50,574 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 09:13:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-28 09:13:50,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-28 09:13:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-10-28 09:13:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 09:13:50,577 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:13:50,577 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:13:50,577 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:13:50,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 09:13:50,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:13:50,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:50,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:50,581 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-28 09:13:50,581 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 09:13:50,582 INFO L791 eck$LassoCheckResult]: Stem: 438#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 439#L14-2 assume !!(main_~x~0 < main_~y~0); 443#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 444#L14-2 assume !!(main_~x~0 < main_~y~0); 440#L14 [2021-10-28 09:13:50,582 INFO L793 eck$LassoCheckResult]: Loop: 440#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 441#L14-2 assume !!(main_~x~0 < main_~y~0); 443#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 444#L14-2 assume !!(main_~x~0 < main_~y~0); 440#L14 [2021-10-28 09:13:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 3 times [2021-10-28 09:13:50,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:50,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806815754] [2021-10-28 09:13:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:50,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:50,614 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:50,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:50,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:50,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-28 09:13:50,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:50,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663509261] [2021-10-28 09:13:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:50,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:50,625 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:50,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash 602329151, now seen corresponding path program 4 times [2021-10-28 09:13:50,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:50,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710675534] [2021-10-28 09:13:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:50,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:50,647 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:50,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:50,705 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:50,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:50,706 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:50,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:50,706 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:13:50,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:50,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:50,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration6_Loop [2021-10-28 09:13:50,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:50,707 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:50,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:50,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:50,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:50,793 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:50,793 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:13:50,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,795 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:13:50,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:50,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:50,820 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:50,821 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:50,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,853 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:13:50,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:50,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:50,877 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:13:50,877 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:13:50,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,908 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:13:50,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:13:50,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:50,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:50,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:50,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:50,959 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:50,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:13:50,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:13:50,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:13:51,335 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:13:51,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 09:13:51,339 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:51,339 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:51,339 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:51,339 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:51,339 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:51,339 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:51,339 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:51,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:51,339 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration6_Loop [2021-10-28 09:13:51,340 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:51,340 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:51,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:51,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:51,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:13:51,410 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:51,411 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:51,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:51,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:51,412 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:51,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:13:51,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:51,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:51,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:51,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:51,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:51,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:51,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:51,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:51,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 09:13:51,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:51,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:51,455 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:51,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:13:51,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:13:51,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:51,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:51,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:51,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:51,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:51,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:51,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:51,481 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:51,485 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:13:51,485 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:13:51,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:51,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:51,500 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:51,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:13:51,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:51,503 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:13:51,503 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:51,503 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 09:13:51,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:51,529 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:13:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:51,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:51,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:51,573 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:13:51,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:51,641 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:13:51,641 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-28 09:13:51,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 20 states and 29 transitions. Complement of second has 6 states. [2021-10-28 09:13:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-10-28 09:13:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-28 09:13:51,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 09:13:51,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:51,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 09:13:51,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:51,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2021-10-28 09:13:51,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:51,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2021-10-28 09:13:51,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:13:51,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-10-28 09:13:51,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:13:51,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:13:51,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:13:51,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:13:51,671 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:13:51,672 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:13:51,672 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:13:51,672 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:13:51,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:13:51,672 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:13:51,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:13:51,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:13:51 BoogieIcfgContainer [2021-10-28 09:13:51,680 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:13:51,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:13:51,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:13:51,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:13:51,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:44" (3/4) ... [2021-10-28 09:13:51,686 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:13:51,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:13:51,688 INFO L168 Benchmark]: Toolchain (without parser) took 7886.85 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 66.4 MB in the beginning and 68.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:13:51,689 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:13:51,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.40 ms. Allocated memory is still 98.6 MB. Free memory was 66.2 MB in the beginning and 74.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:13:51,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.68 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:13:51,690 INFO L168 Benchmark]: Boogie Preprocessor took 21.67 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 72.4 MB in the end (delta: 866.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:13:51,691 INFO L168 Benchmark]: RCFGBuilder took 255.79 ms. Allocated memory is still 98.6 MB. Free memory was 72.4 MB in the beginning and 64.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:13:51,691 INFO L168 Benchmark]: BuchiAutomizer took 7274.28 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 64.4 MB in the beginning and 69.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:13:51,692 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 138.4 MB. Free memory was 69.8 MB in the beginning and 68.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:13:51,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 51.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.40 ms. Allocated memory is still 98.6 MB. Free memory was 66.2 MB in the beginning and 74.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.68 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.67 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 72.4 MB in the end (delta: 866.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 255.79 ms. Allocated memory is still 98.6 MB. Free memory was 72.4 MB in the beginning and 64.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7274.28 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 64.4 MB in the beginning and 69.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.49 ms. Allocated memory is still 138.4 MB. Free memory was 69.8 MB in the beginning and 68.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function z + -1 * x and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. One deterministic module has affine ranking function y + -1 * z and consists of 4 locations. One nondeterministic module has affine ranking function z + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.8s. 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 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 31 SDtfs, 35 SDslu, 3 SDs, 0 SdLazy, 64 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax186 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp97 dnf100 smp100 tf110 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 84ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:13:51,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:51,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cba40a-d264-4042-8d03-ee4cb7b5240e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...