./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/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_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 708f088db085ec098a8544d76f8abbece9dbe61a183e0bc1703749c9af891b6b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:53:49,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:53:49,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:53:49,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:53:49,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:53:49,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:53:49,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:53:49,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:53:49,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:53:49,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:53:49,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:53:49,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:53:49,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:53:49,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:53:49,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:53:49,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:53:49,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:53:49,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:53:49,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:53:49,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:53:49,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:53:49,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:53:49,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:53:49,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:53:49,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:53:49,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:53:49,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:53:49,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:53:49,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:53:49,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:53:49,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:53:49,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:53:49,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:53:49,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:53:49,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:53:49,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:53:49,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:53:49,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:53:49,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:53:49,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:53:49,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:53:49,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:53:49,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:53:49,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:53:49,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:53:49,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:53:49,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:53:49,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:53:49,240 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:53:49,241 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:53:49,241 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:53:49,241 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:53:49,243 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:53:49,243 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:53:49,243 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:53:49,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:53:49,244 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:53:49,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:53:49,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:53:49,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:53:49,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:53:49,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:53:49,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:53:49,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:53:49,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:53:49,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:53:49,247 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:53:49,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:53:49,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:53:49,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:53:49,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:53:49,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:53:49,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:53:49,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:53:49,254 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:53:49,254 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_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 708f088db085ec098a8544d76f8abbece9dbe61a183e0bc1703749c9af891b6b [2021-10-28 08:53:49,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:53:49,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:53:49,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:53:49,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:53:49,679 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:53:49,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-10-28 08:53:49,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/data/2729b5eda/0cdd3505a6534ba383b55beec6877b9a/FLAG74c5bc87c [2021-10-28 08:53:50,476 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:53:50,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-10-28 08:53:50,502 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/data/2729b5eda/0cdd3505a6534ba383b55beec6877b9a/FLAG74c5bc87c [2021-10-28 08:53:50,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/data/2729b5eda/0cdd3505a6534ba383b55beec6877b9a [2021-10-28 08:53:50,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:53:50,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:53:50,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:53:50,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:53:50,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:53:50,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:53:50" (1/1) ... [2021-10-28 08:53:50,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc55031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:50, skipping insertion in model container [2021-10-28 08:53:50,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:53:50" (1/1) ... [2021-10-28 08:53:50,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:53:50,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:53:51,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12764,12777] [2021-10-28 08:53:51,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:53:51,223 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:53:51,292 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12764,12777] [2021-10-28 08:53:51,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:53:51,316 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:53:51,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51 WrapperNode [2021-10-28 08:53:51,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:53:51,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:53:51,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:53:51,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:53:51,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:53:51,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:53:51,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:53:51,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:53:51,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:53:51,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:53:51,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:53:51,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:53:51,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (1/1) ... [2021-10-28 08:53:51,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:51,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:51,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:51,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:53:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:53:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:53:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:53:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:53:52,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:53:52,471 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-28 08:53:52,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:52 BoogieIcfgContainer [2021-10-28 08:53:52,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:53:52,476 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:53:52,476 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:53:52,480 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:53:52,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:53:52,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:53:50" (1/3) ... [2021-10-28 08:53:52,484 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b39320f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:53:52, skipping insertion in model container [2021-10-28 08:53:52,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:53:52,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:51" (2/3) ... [2021-10-28 08:53:52,485 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b39320f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:53:52, skipping insertion in model container [2021-10-28 08:53:52,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:53:52,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:52" (3/3) ... [2021-10-28 08:53:52,487 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2021-10-28 08:53:52,541 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:53:52,541 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:53:52,541 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:53:52,541 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:53:52,541 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:53:52,542 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:53:52,542 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:53:52,542 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:53:52,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:52,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-28 08:53:52,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:52,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:52,614 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:52,614 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:52,614 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:53:52,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:52,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-28 08:53:52,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:52,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:52,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:52,635 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:52,646 INFO L791 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 46#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 95#L228true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 51#L231-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 34#L241true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 30#L244-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 61#L254true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 64#L257-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 27#L267true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 15#L270-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 102#L280true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 81#L283-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 119#L293true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 79#L296-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 129#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 116#L306-1true init_#res := init_~tmp___5~0; 111#L415true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 53#L509true assume !(0 == main_~i2~0); 90#L509-2true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 35#L523-2true [2021-10-28 08:53:52,655 INFO L793 eck$LassoCheckResult]: Loop: 35#L523-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 70#L75true assume !(0 != ~mode1~0 % 256); 66#L100true assume !(~r1~0 < 2); 84#L100-1true ~mode1~0 := 1; 117#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 101#L118true assume !(0 != ~mode2~0 % 256); 105#L143true assume !(~r2~0 < 2); 96#L143-1true ~mode2~0 := 1; 67#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 14#L161true assume !(0 != ~mode3~0 % 256); 74#L186true assume !(~r3~0 < 2); 29#L186-1true ~mode3~0 := 1; 6#L161-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 21#L423true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 71#L423-1true check_#res := check_~tmp~1; 28#L471true main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 87#L553true assume !(0 == assert_~arg % 256); 72#L548true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 35#L523-2true [2021-10-28 08:53:52,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:52,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2021-10-28 08:53:52,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:52,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690988327] [2021-10-28 08:53:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:52,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:53,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:53,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690988327] [2021-10-28 08:53:53,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690988327] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:53,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:53,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:53:53,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136420183] [2021-10-28 08:53:53,165 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:53:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:53,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1518597457, now seen corresponding path program 1 times [2021-10-28 08:53:53,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:53,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860272370] [2021-10-28 08:53:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:53,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:53,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:53,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860272370] [2021-10-28 08:53:53,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860272370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:53,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:53,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:53:53,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430982321] [2021-10-28 08:53:53,302 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:53:53,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:53,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:53:53,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:53:53,324 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:53,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:53,433 INFO L93 Difference]: Finished difference Result 134 states and 226 transitions. [2021-10-28 08:53:53,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:53:53,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 226 transitions. [2021-10-28 08:53:53,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 08:53:53,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 210 transitions. [2021-10-28 08:53:53,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-10-28 08:53:53,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-10-28 08:53:53,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 210 transitions. [2021-10-28 08:53:53,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:53,455 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-10-28 08:53:53,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 210 transitions. [2021-10-28 08:53:53,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-28 08:53:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.68) internal successors, (210), 124 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 210 transitions. [2021-10-28 08:53:53,500 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-10-28 08:53:53,500 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-10-28 08:53:53,500 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:53:53,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 210 transitions. [2021-10-28 08:53:53,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 08:53:53,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:53,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:53,506 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:53,507 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:53,507 INFO L791 eck$LassoCheckResult]: Stem: 405#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 353#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 354#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 360#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 337#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 295#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 335#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 345#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 331#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 299#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 309#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 381#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 386#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 347#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 385#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 284#L306-1 init_#res := init_~tmp___5~0; 403#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 362#L509 assume !(0 == main_~i2~0); 363#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 338#L523-2 [2021-10-28 08:53:53,507 INFO L793 eck$LassoCheckResult]: Loop: 338#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 339#L75 assume !(0 != ~mode1~0 % 256); 375#L100 assume !(~r1~0 < 2); 355#L100-1 ~mode1~0 := 1; 328#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 395#L118 assume !(0 != ~mode2~0 % 256); 396#L143 assume !(~r2~0 < 2); 350#L143-1 ~mode2~0 := 1; 377#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 306#L161 assume !(0 != ~mode3~0 % 256); 308#L186 assume !(~r3~0 < 2); 334#L186-1 ~mode3~0 := 1; 287#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 288#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 319#L424 assume ~st1~0 + ~nl1~0 <= 1; 401#L425 assume ~st2~0 + ~nl2~0 <= 1; 402#L426 assume ~st3~0 + ~nl3~0 <= 1; 394#L427 assume ~r1~0 >= 2; 311#L431 assume ~r1~0 < 2; 351#L436 assume ~r1~0 >= 2; 322#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 323#L423-1 check_#res := check_~tmp~1; 332#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 333#L553 assume !(0 == assert_~arg % 256); 379#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 338#L523-2 [2021-10-28 08:53:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:53,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2021-10-28 08:53:53,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:53,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967277673] [2021-10-28 08:53:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:53,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:53,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:53,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967277673] [2021-10-28 08:53:53,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967277673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:53,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:53,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:53:53,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221567677] [2021-10-28 08:53:53,647 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:53:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 1 times [2021-10-28 08:53:53,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:53,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866957010] [2021-10-28 08:53:53,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:53,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:53,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:53,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:53,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866957010] [2021-10-28 08:53:53,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866957010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:53,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:53,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:53:53,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149597515] [2021-10-28 08:53:53,749 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:53:53,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:53,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:53:53,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:53:53,751 INFO L87 Difference]: Start difference. First operand 125 states and 210 transitions. cyclomatic complexity: 86 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:53,883 INFO L93 Difference]: Finished difference Result 196 states and 320 transitions. [2021-10-28 08:53:53,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:53:53,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 320 transitions. [2021-10-28 08:53:53,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 08:53:53,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 193 states and 291 transitions. [2021-10-28 08:53:53,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2021-10-28 08:53:53,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2021-10-28 08:53:53,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 291 transitions. [2021-10-28 08:53:53,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:53,907 INFO L681 BuchiCegarLoop]: Abstraction has 193 states and 291 transitions. [2021-10-28 08:53:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 291 transitions. [2021-10-28 08:53:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2021-10-28 08:53:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2021-10-28 08:53:53,931 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-10-28 08:53:53,931 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-10-28 08:53:53,931 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:53:53,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2021-10-28 08:53:53,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 08:53:53,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:53,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:53,936 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:53,936 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:53,936 INFO L791 eck$LassoCheckResult]: Stem: 739#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 687#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 688#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 694#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 671#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 628#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 668#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 679#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 664#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 632#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 642#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 715#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 721#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 681#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 719#L306 assume ~id1~0 != ~id2~0; 723#L307 assume ~id1~0 != ~id3~0; 637#L308 assume ~id2~0 != ~id3~0; 638#L309 assume ~id1~0 >= 0; 722#L310 assume ~id2~0 >= 0; 701#L311 assume ~id3~0 >= 0; 702#L312 assume 0 == ~r1~0; 662#L313 assume 0 == ~r2~0; 663#L314 assume 0 == ~r3~0; 692#L315 assume 0 != init_~r122~0 % 256; 693#L316 assume 0 != init_~r132~0 % 256; 618#L317 assume 0 != init_~r212~0 % 256; 619#L318 assume 0 != init_~r232~0 % 256; 740#L319 assume 0 != init_~r312~0 % 256; 727#L320 assume 0 != init_~r322~0 % 256; 717#L321 assume ~max1~0 == ~id1~0; 718#L322 assume ~max2~0 == ~id2~0; 616#L323 assume ~max3~0 == ~id3~0; 617#L324 assume 0 == ~st1~0; 645#L325 assume 0 == ~st2~0; 670#L326 assume 0 == ~st3~0; 653#L327 assume 0 == ~nl1~0; 654#L328 assume 0 == ~nl2~0; 682#L329 assume 0 == ~nl3~0; 683#L330 assume 0 == ~mode1~0 % 256; 635#L331 assume 0 == ~mode2~0 % 256; 636#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 669#L306-1 init_#res := init_~tmp___5~0; 737#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 699#L509 assume !(0 == main_~i2~0); 700#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 674#L523-2 [2021-10-28 08:53:53,937 INFO L793 eck$LassoCheckResult]: Loop: 674#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 675#L75 assume !(0 != ~mode1~0 % 256); 709#L100 assume !(~r1~0 < 2); 689#L100-1 ~mode1~0 := 1; 661#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 729#L118 assume !(0 != ~mode2~0 % 256); 730#L143 assume !(~r2~0 < 2); 684#L143-1 ~mode2~0 := 1; 711#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 639#L161 assume !(0 != ~mode3~0 % 256); 641#L186 assume !(~r3~0 < 2); 667#L186-1 ~mode3~0 := 1; 620#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 621#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 650#L424 assume ~st1~0 + ~nl1~0 <= 1; 735#L425 assume ~st2~0 + ~nl2~0 <= 1; 736#L426 assume ~st3~0 + ~nl3~0 <= 1; 728#L427 assume ~r1~0 >= 2; 644#L431 assume ~r1~0 < 2; 685#L436 assume ~r1~0 >= 2; 655#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 656#L423-1 check_#res := check_~tmp~1; 665#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 666#L553 assume !(0 == assert_~arg % 256); 713#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 674#L523-2 [2021-10-28 08:53:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:53,938 INFO L85 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2021-10-28 08:53:53,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:53,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941346111] [2021-10-28 08:53:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:53,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:54,003 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:54,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:54,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:54,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 2 times [2021-10-28 08:53:54,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:54,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343764913] [2021-10-28 08:53:54,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:54,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:54,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:54,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343764913] [2021-10-28 08:53:54,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343764913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:54,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:54,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:53:54,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072092300] [2021-10-28 08:53:54,157 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:53:54,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:53:54,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:53:54,158 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:54,198 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2021-10-28 08:53:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:53:54,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 259 transitions. [2021-10-28 08:53:54,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2021-10-28 08:53:54,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 176 states and 259 transitions. [2021-10-28 08:53:54,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2021-10-28 08:53:54,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2021-10-28 08:53:54,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 176 states and 259 transitions. [2021-10-28 08:53:54,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:54,207 INFO L681 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-10-28 08:53:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 259 transitions. [2021-10-28 08:53:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-10-28 08:53:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 176 states have (on average 1.4715909090909092) internal successors, (259), 175 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 259 transitions. [2021-10-28 08:53:54,218 INFO L704 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-10-28 08:53:54,219 INFO L587 BuchiCegarLoop]: Abstraction has 176 states and 259 transitions. [2021-10-28 08:53:54,219 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:53:54,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 259 transitions. [2021-10-28 08:53:54,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 119 [2021-10-28 08:53:54,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:54,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:54,223 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:54,223 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:54,224 INFO L791 eck$LassoCheckResult]: Stem: 1052#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 993#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 994#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1000#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 977#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 935#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 975#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 985#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 970#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 939#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 949#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 1022#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1029#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 987#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1027#L306 assume ~id1~0 != ~id2~0; 1031#L307 assume ~id1~0 != ~id3~0; 944#L308 assume ~id2~0 != ~id3~0; 945#L309 assume ~id1~0 >= 0; 1030#L310 assume ~id2~0 >= 0; 1007#L311 assume ~id3~0 >= 0; 1008#L312 assume 0 == ~r1~0; 968#L313 assume 0 == ~r2~0; 969#L314 assume 0 == ~r3~0; 996#L315 assume 0 != init_~r122~0 % 256; 997#L316 assume 0 != init_~r132~0 % 256; 925#L317 assume 0 != init_~r212~0 % 256; 926#L318 assume 0 != init_~r232~0 % 256; 1055#L319 assume 0 != init_~r312~0 % 256; 1036#L320 assume 0 != init_~r322~0 % 256; 1025#L321 assume ~max1~0 == ~id1~0; 1026#L322 assume ~max2~0 == ~id2~0; 923#L323 assume ~max3~0 == ~id3~0; 924#L324 assume 0 == ~st1~0; 950#L325 assume 0 == ~st2~0; 976#L326 assume 0 == ~st3~0; 960#L327 assume 0 == ~nl1~0; 961#L328 assume 0 == ~nl2~0; 988#L329 assume 0 == ~nl3~0; 989#L330 assume 0 == ~mode1~0 % 256; 942#L331 assume 0 == ~mode2~0 % 256; 943#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 974#L306-1 init_#res := init_~tmp___5~0; 1050#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 1002#L509 assume !(0 == main_~i2~0); 1003#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 1035#L523-2 [2021-10-28 08:53:54,224 INFO L793 eck$LassoCheckResult]: Loop: 1035#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1057#L75 assume !(0 != ~mode1~0 % 256); 1056#L100 assume ~r1~0 < 2; 1053#L101 assume !(0 != ~ep12~0 % 256); 999#L101-2 assume !(0 != ~ep13~0 % 256); 995#L100-1 ~mode1~0 := 1; 967#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1040#L118 assume !(0 != ~mode2~0 % 256); 1041#L143 assume !(~r2~0 < 2); 990#L143-1 ~mode2~0 := 1; 1018#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 946#L161 assume !(0 != ~mode3~0 % 256); 948#L186 assume !(~r3~0 < 2); 1070#L186-1 ~mode3~0 := 1; 1068#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1067#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1066#L424 assume ~st1~0 + ~nl1~0 <= 1; 1065#L425 assume ~st2~0 + ~nl2~0 <= 1; 1064#L426 assume ~st3~0 + ~nl3~0 <= 1; 1063#L427 assume !(~r1~0 >= 2); 951#L430 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 952#L431 assume ~r1~0 < 2; 1062#L436 assume !(~r1~0 >= 2); 1044#L440 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1045#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 1061#L423-1 check_#res := check_~tmp~1; 1060#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1059#L553 assume !(0 == assert_~arg % 256); 1058#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 1035#L523-2 [2021-10-28 08:53:54,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:54,225 INFO L85 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2021-10-28 08:53:54,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:54,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895418582] [2021-10-28 08:53:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:54,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:54,298 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:54,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:54,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:54,404 INFO L85 PathProgramCache]: Analyzing trace with hash -480396747, now seen corresponding path program 1 times [2021-10-28 08:53:54,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:54,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086025833] [2021-10-28 08:53:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:54,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:54,416 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:54,432 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:54,435 INFO L85 PathProgramCache]: Analyzing trace with hash 472050935, now seen corresponding path program 1 times [2021-10-28 08:53:54,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:54,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143541192] [2021-10-28 08:53:54,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:54,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:54,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:54,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143541192] [2021-10-28 08:53:54,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143541192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:54,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:54,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:53:54,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823055017] [2021-10-28 08:53:55,384 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:53:55,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:53:55,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:53:55,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:53:55,386 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:53:55,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:55,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:53:55,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:53:55,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-28 08:53:55,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:53:55,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:53:55,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,532 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 08:53:55,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:55,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:53:56,012 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:53:56,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:56,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:56,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:56,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:53:56,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:53:56,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:53:56,067 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:53:56,068 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:53:56,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:56,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:56,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:56,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:56,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:53:56,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:53:56,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:53:56,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:56,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:56,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:56,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:56,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:53:56,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:53:56,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:53:56,347 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:53:56,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:56,356 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:53:56,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:53:56,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:53:56,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:53:56,357 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:53:56,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:56,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:53:56,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:53:56,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-28 08:53:56,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:53:56,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:53:56,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:53:56,893 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:53:56,919 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:53:56,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:56,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:56,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:56,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:56,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:56,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:56,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:56,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:56,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:56,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:56,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:56,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:53:56,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,014 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:53:57,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,097 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:53:57,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,178 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:53:57,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,254 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:53:57,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,335 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:53:57,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,403 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:53:57,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,481 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:53:57,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:53:57,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,545 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:53:57,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:53:57,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:53:57,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:53:57,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:53:57,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:53:57,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:53:57,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:53:57,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:53:57,590 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:53:57,603 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:53:57,603 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:53:57,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:57,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:57,627 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:57,634 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:53:57,635 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:53:57,635 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:53:57,635 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2021-10-28 08:53:57,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:53:57,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:57,681 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:53:57,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:57,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:53:57,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:58,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:53:58,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:58,320 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:53:58,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:58,391 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 176 states and 259 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 294 states and 443 transitions. Complement of second has 4 states. [2021-10-28 08:53:58,391 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 08:53:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:58,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2021-10-28 08:53:58,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 29 letters. [2021-10-28 08:53:58,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:53:58,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 74 letters. Loop has 29 letters. [2021-10-28 08:53:58,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:53:58,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 58 letters. [2021-10-28 08:53:58,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:53:58,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 443 transitions. [2021-10-28 08:53:58,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:53:58,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 0 states and 0 transitions. [2021-10-28 08:53:58,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:53:58,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:53:58,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:53:58,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:58,411 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:53:58,412 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:53:58,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:58,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:53:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:53:58,417 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:58,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:58,417 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 08:53:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:53:58,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 08:53:58,418 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:53:58,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:53:58,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:53:58,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:53:58,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:53:58,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:58,419 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:53:58,419 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:53:58,419 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:53:58,419 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:53:58,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:53:58,420 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:53:58,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:53:58,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:53:58 BoogieIcfgContainer [2021-10-28 08:53:58,427 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:53:58,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:53:58,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:53:58,429 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:53:58,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:52" (3/4) ... [2021-10-28 08:53:58,433 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:53:58,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:53:58,439 INFO L168 Benchmark]: Toolchain (without parser) took 7658.47 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 78.7 MB in the beginning and 67.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:58,439 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 117.4 MB. Free memory was 96.0 MB in the beginning and 95.9 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:58,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.48 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 89.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:58,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.05 ms. Allocated memory is still 117.4 MB. Free memory was 88.8 MB in the beginning and 86.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:58,442 INFO L168 Benchmark]: Boogie Preprocessor took 71.20 ms. Allocated memory is still 117.4 MB. Free memory was 86.0 MB in the beginning and 83.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:58,445 INFO L168 Benchmark]: RCFGBuilder took 979.61 ms. Allocated memory is still 117.4 MB. Free memory was 83.9 MB in the beginning and 60.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:58,448 INFO L168 Benchmark]: BuchiAutomizer took 5951.85 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 60.1 MB in the beginning and 68.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:58,448 INFO L168 Benchmark]: Witness Printer took 5.15 ms. Allocated memory is still 157.3 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:58,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 117.4 MB. Free memory was 96.0 MB in the beginning and 95.9 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 540.48 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 89.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.05 ms. Allocated memory is still 117.4 MB. Free memory was 88.8 MB in the beginning and 86.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.20 ms. Allocated memory is still 117.4 MB. Free memory was 86.0 MB in the beginning and 83.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 979.61 ms. Allocated memory is still 117.4 MB. Free memory was 83.9 MB in the beginning and 60.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5951.85 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 60.1 MB in the beginning and 68.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.15 ms. Allocated memory is still 157.3 MB. Free memory is still 67.4 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 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 176 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 788 SDtfs, 464 SDslu, 1507 SDs, 0 SdLazy, 55 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital131 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:53:58,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:58,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6264e1ac-1129-4bbf-8c9c-5ac054ef8466/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...