./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.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_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD --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 8b0406e617bfcdc7e6543e19b38e9be8eeb37f2896cb91bcfe6035d747328da7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:25:10,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:25:10,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:25:10,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:25:10,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:25:10,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:25:10,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:25:10,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:25:10,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:25:10,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:25:10,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:25:10,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:25:10,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:25:10,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:25:10,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:25:10,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:25:10,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:25:10,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:25:10,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:25:10,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:25:10,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:25:10,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:25:10,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:25:10,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:25:10,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:25:10,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:25:10,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:25:10,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:25:10,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:25:10,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:25:10,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:25:10,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:25:10,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:25:10,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:25:10,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:25:10,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:25:10,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:25:10,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:25:10,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:25:10,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:25:10,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:25:10,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:25:10,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:25:10,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:25:10,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:25:10,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:25:10,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:25:10,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:25:10,411 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:25:10,411 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:25:10,411 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:25:10,412 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:25:10,412 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:25:10,412 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:25:10,412 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:25:10,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:25:10,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:25:10,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:25:10,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:25:10,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:25:10,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:25:10,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:25:10,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:25:10,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:25:10,415 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:25:10,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:25:10,415 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:25:10,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:25:10,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:25:10,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:25:10,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:25:10,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:25:10,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:25:10,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:25:10,418 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:25:10,418 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_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b0406e617bfcdc7e6543e19b38e9be8eeb37f2896cb91bcfe6035d747328da7 [2021-10-28 23:25:10,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:25:10,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:25:10,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:25:10,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:25:10,744 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:25:10,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2021-10-28 23:25:10,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/data/338d8f427/acc7aa69d5a94b89bc8e331953165679/FLAG5d7907451 [2021-10-28 23:25:11,492 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:25:11,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2021-10-28 23:25:11,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/data/338d8f427/acc7aa69d5a94b89bc8e331953165679/FLAG5d7907451 [2021-10-28 23:25:11,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/data/338d8f427/acc7aa69d5a94b89bc8e331953165679 [2021-10-28 23:25:11,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:25:11,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:25:11,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:11,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:25:11,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:25:11,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:11" (1/1) ... [2021-10-28 23:25:11,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe394d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:11, skipping insertion in model container [2021-10-28 23:25:11,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:11" (1/1) ... [2021-10-28 23:25:11,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:25:11,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:25:12,212 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_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c[11348,11361] [2021-10-28 23:25:12,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:12,225 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:25:12,295 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_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c[11348,11361] [2021-10-28 23:25:12,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:12,316 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:25:12,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12 WrapperNode [2021-10-28 23:25:12,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:12,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:12,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:25:12,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:25:12,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:12,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:25:12,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:25:12,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:25:12,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:25:12,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:25:12,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:25:12,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:25:12,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (1/1) ... [2021-10-28 23:25:12,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:12,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:12,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:12,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:25:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:25:13,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:25:13,365 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-28 23:25:13,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:13 BoogieIcfgContainer [2021-10-28 23:25:13,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:25:13,379 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:25:13,379 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:25:13,391 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:25:13,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:13,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:25:11" (1/3) ... [2021-10-28 23:25:13,393 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4685e08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:13, skipping insertion in model container [2021-10-28 23:25:13,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:13,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:12" (2/3) ... [2021-10-28 23:25:13,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4685e08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:13, skipping insertion in model container [2021-10-28 23:25:13,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:13,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:13" (3/3) ... [2021-10-28 23:25:13,396 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2021-10-28 23:25:13,443 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:25:13,443 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:25:13,443 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:25:13,443 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:25:13,444 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:25:13,444 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:25:13,444 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:25:13,444 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:25:13,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 124 states, 123 states have (on average 1.7398373983739837) internal successors, (214), 123 states have internal predecessors, (214), 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 23:25:13,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-28 23:25:13,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:13,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:13,501 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 23:25:13,501 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 23:25:13,501 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:25:13,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 124 states, 123 states have (on average 1.7398373983739837) internal successors, (214), 123 states have internal predecessors, (214), 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 23:25:13,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-28 23:25:13,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:13,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:13,513 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 23:25:13,513 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 23:25:13,522 INFO L791 eck$LassoCheckResult]: Stem: 115#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; 43#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; 93#L228true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 48#L231-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 33#L241true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 29#L244-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 58#L254true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 62#L257-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 26#L267true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 17#L270-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 101#L280true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 79#L283-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 114#L293true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 77#L296-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 123#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 111#L306-1true init_#res := init_~tmp___5~0; 91#L391true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 102#L485true assume !(0 == main_~i2~0); 7#L485-2true ~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; 53#L499-2true [2021-10-28 23:25:13,522 INFO L793 eck$LassoCheckResult]: Loop: 53#L499-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 69#L75true assume !(0 != ~mode1~0 % 256); 64#L100true assume !(~r1~0 < 2); 82#L100-1true ~mode1~0 := 1; 112#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 100#L118true assume !(0 != ~mode2~0 % 256); 104#L143true assume !(~r2~0 < 2); 94#L143-1true ~mode2~0 := 1; 65#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 15#L161true assume !(0 != ~mode3~0 % 256); 71#L186true assume !(~r3~0 < 2); 27#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; 75#L399true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 120#L399-1true check_#res := check_~tmp~1; 30#L447true 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; 98#L529true assume !(0 == assert_~arg % 256); 28#L524true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 53#L499-2true [2021-10-28 23:25:13,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1693212754, now seen corresponding path program 1 times [2021-10-28 23:25:13,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:13,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120411258] [2021-10-28 23:25:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:13,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:13,830 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 23:25:13,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:13,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120411258] [2021-10-28 23:25:13,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120411258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:13,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:13,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:25:13,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75396349] [2021-10-28 23:25:13,839 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:13,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2071749167, now seen corresponding path program 1 times [2021-10-28 23:25:13,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:13,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932226518] [2021-10-28 23:25:13,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:13,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:13,949 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 23:25:13,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:13,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932226518] [2021-10-28 23:25:13,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932226518] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:13,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:13,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:25:13,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014220098] [2021-10-28 23:25:13,952 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:25:13,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:13,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:13,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:13,971 INFO L87 Difference]: Start difference. First operand has 124 states, 123 states have (on average 1.7398373983739837) internal successors, (214), 123 states have internal predecessors, (214), 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 23:25:14,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:14,051 INFO L93 Difference]: Finished difference Result 128 states and 214 transitions. [2021-10-28 23:25:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:14,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 214 transitions. [2021-10-28 23:25:14,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 23:25:14,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 119 states and 198 transitions. [2021-10-28 23:25:14,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2021-10-28 23:25:14,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2021-10-28 23:25:14,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 198 transitions. [2021-10-28 23:25:14,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:14,068 INFO L681 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2021-10-28 23:25:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 198 transitions. [2021-10-28 23:25:14,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-28 23:25:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.6638655462184875) internal successors, (198), 118 states have internal predecessors, (198), 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 23:25:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 198 transitions. [2021-10-28 23:25:14,100 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2021-10-28 23:25:14,100 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 198 transitions. [2021-10-28 23:25:14,100 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:25:14,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 198 transitions. [2021-10-28 23:25:14,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 23:25:14,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:14,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:14,104 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 23:25:14,104 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 23:25:14,105 INFO L791 eck$LassoCheckResult]: Stem: 387#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; 338#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; 339#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 345#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 325#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 285#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 323#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 333#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 318#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 291#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 302#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 365#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 371#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 335#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 370#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 272#L306-1 init_#res := init_~tmp___5~0; 379#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 380#L485 assume !(0 == main_~i2~0); 277#L485-2 ~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; 278#L499-2 [2021-10-28 23:25:14,105 INFO L793 eck$LassoCheckResult]: Loop: 278#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 352#L75 assume !(0 != ~mode1~0 % 256); 360#L100 assume !(~r1~0 < 2); 340#L100-1 ~mode1~0 := 1; 315#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 381#L118 assume !(0 != ~mode2~0 % 256); 382#L143 assume !(~r2~0 < 2); 336#L143-1 ~mode2~0 := 1; 362#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 296#L161 assume !(0 != ~mode3~0 % 256); 297#L186 assume !(~r3~0 < 2); 319#L186-1 ~mode3~0 := 1; 275#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; 276#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 369#L400 assume ~st1~0 + ~nl1~0 <= 1; 287#L401 assume ~st2~0 + ~nl2~0 <= 1; 288#L402 assume ~st3~0 + ~nl3~0 <= 1; 355#L403 assume ~r1~0 >= 2; 299#L407 assume ~r1~0 < 2; 300#L412 assume ~r1~0 >= 2; 306#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 327#L399-1 check_#res := check_~tmp~1; 321#L447 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; 322#L529 assume !(0 == assert_~arg % 256); 320#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 278#L499-2 [2021-10-28 23:25:14,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1693212754, now seen corresponding path program 2 times [2021-10-28 23:25:14,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360564461] [2021-10-28 23:25:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,193 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 23:25:14,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:14,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360564461] [2021-10-28 23:25:14,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360564461] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:14,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:14,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:25:14,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404592448] [2021-10-28 23:25:14,195 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash -980587296, now seen corresponding path program 1 times [2021-10-28 23:25:14,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787352571] [2021-10-28 23:25:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,225 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 23:25:14,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:14,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787352571] [2021-10-28 23:25:14,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787352571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:14,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:14,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:14,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968343192] [2021-10-28 23:25:14,227 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:25:14,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:14,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:14,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:14,228 INFO L87 Difference]: Start difference. First operand 119 states and 198 transitions. cyclomatic complexity: 80 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 23:25:14,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:14,296 INFO L93 Difference]: Finished difference Result 190 states and 308 transitions. [2021-10-28 23:25:14,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:25:14,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 308 transitions. [2021-10-28 23:25:14,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 23:25:14,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 187 states and 285 transitions. [2021-10-28 23:25:14,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2021-10-28 23:25:14,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2021-10-28 23:25:14,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 285 transitions. [2021-10-28 23:25:14,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:14,313 INFO L681 BuchiCegarLoop]: Abstraction has 187 states and 285 transitions. [2021-10-28 23:25:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 285 transitions. [2021-10-28 23:25:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 119. [2021-10-28 23:25:14,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.4873949579831933) internal successors, (177), 118 states have internal predecessors, (177), 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 23:25:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 177 transitions. [2021-10-28 23:25:14,322 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 177 transitions. [2021-10-28 23:25:14,322 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 177 transitions. [2021-10-28 23:25:14,322 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:25:14,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 177 transitions. [2021-10-28 23:25:14,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 23:25:14,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:14,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:14,328 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] [2021-10-28 23:25:14,328 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 23:25:14,329 INFO L791 eck$LassoCheckResult]: Stem: 709#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; 660#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; 661#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 667#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 647#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 608#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 644#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 655#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 639#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 612#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 623#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 687#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 694#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 657#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 692#L306 assume ~id1~0 != ~id2~0; 696#L307 assume ~id1~0 != ~id3~0; 615#L308 assume ~id2~0 != ~id3~0; 616#L309 assume ~id1~0 >= 0; 695#L310 assume ~id2~0 >= 0; 672#L311 assume ~id3~0 >= 0; 673#L312 assume 0 == ~r1~0; 637#L313 assume 0 == ~r2~0; 638#L314 assume 0 == ~r3~0; 665#L315 assume ~max1~0 == ~id1~0; 666#L316 assume ~max2~0 == ~id2~0; 594#L317 assume ~max3~0 == ~id3~0; 595#L318 assume 0 == ~st1~0; 710#L319 assume 0 == ~st2~0; 700#L320 assume 0 == ~st3~0; 689#L321 assume 0 == ~nl1~0; 690#L322 assume 0 == ~nl2~0; 592#L323 assume 0 == ~nl3~0; 593#L324 assume 0 == ~mode1~0 % 256; 624#L325 assume 0 == ~mode2~0 % 256; 645#L326 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 646#L306-1 init_#res := init_~tmp___5~0; 701#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 702#L485 assume !(0 == main_~i2~0); 598#L485-2 ~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; 599#L499-2 [2021-10-28 23:25:14,329 INFO L793 eck$LassoCheckResult]: Loop: 599#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 674#L75 assume !(0 != ~mode1~0 % 256); 682#L100 assume !(~r1~0 < 2); 662#L100-1 ~mode1~0 := 1; 636#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 703#L118 assume !(0 != ~mode2~0 % 256); 704#L143 assume !(~r2~0 < 2); 658#L143-1 ~mode2~0 := 1; 684#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 617#L161 assume !(0 != ~mode3~0 % 256); 618#L186 assume !(~r3~0 < 2); 640#L186-1 ~mode3~0 := 1; 596#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; 597#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 691#L400 assume ~st1~0 + ~nl1~0 <= 1; 605#L401 assume ~st2~0 + ~nl2~0 <= 1; 606#L402 assume ~st3~0 + ~nl3~0 <= 1; 677#L403 assume ~r1~0 >= 2; 620#L407 assume ~r1~0 < 2; 621#L412 assume ~r1~0 >= 2; 627#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 649#L399-1 check_#res := check_~tmp~1; 642#L447 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; 643#L529 assume !(0 == assert_~arg % 256); 641#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 599#L499-2 [2021-10-28 23:25:14,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1849055478, now seen corresponding path program 1 times [2021-10-28 23:25:14,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529334372] [2021-10-28 23:25:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,402 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:14,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,509 INFO L85 PathProgramCache]: Analyzing trace with hash -980587296, now seen corresponding path program 2 times [2021-10-28 23:25:14,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171755191] [2021-10-28 23:25:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,532 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 23:25:14,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:14,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171755191] [2021-10-28 23:25:14,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171755191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:14,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:14,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:14,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531081019] [2021-10-28 23:25:14,534 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:25:14,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:14,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:25:14,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:25:14,535 INFO L87 Difference]: Start difference. First operand 119 states and 177 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 23:25:14,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:14,587 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2021-10-28 23:25:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:25:14,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 254 transitions. [2021-10-28 23:25:14,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2021-10-28 23:25:14,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 254 transitions. [2021-10-28 23:25:14,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-10-28 23:25:14,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-10-28 23:25:14,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 254 transitions. [2021-10-28 23:25:14,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:14,595 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-10-28 23:25:14,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 254 transitions. [2021-10-28 23:25:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-10-28 23:25:14,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.4853801169590644) internal successors, (254), 170 states have internal predecessors, (254), 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 23:25:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 254 transitions. [2021-10-28 23:25:14,610 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-10-28 23:25:14,610 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 254 transitions. [2021-10-28 23:25:14,610 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:25:14,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 254 transitions. [2021-10-28 23:25:14,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2021-10-28 23:25:14,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:14,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:14,620 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] [2021-10-28 23:25:14,620 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 23:25:14,621 INFO L791 eck$LassoCheckResult]: Stem: 1016#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; 959#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; 960#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 966#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 944#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 904#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 941#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 952#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 935#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 908#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 918#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 988#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 996#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 954#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 994#L306 assume ~id1~0 != ~id2~0; 998#L307 assume ~id1~0 != ~id3~0; 911#L308 assume ~id2~0 != ~id3~0; 912#L309 assume ~id1~0 >= 0; 997#L310 assume ~id2~0 >= 0; 971#L311 assume ~id3~0 >= 0; 972#L312 assume 0 == ~r1~0; 933#L313 assume 0 == ~r2~0; 934#L314 assume 0 == ~r3~0; 964#L315 assume ~max1~0 == ~id1~0; 965#L316 assume ~max2~0 == ~id2~0; 890#L317 assume ~max3~0 == ~id3~0; 891#L318 assume 0 == ~st1~0; 1019#L319 assume 0 == ~st2~0; 1002#L320 assume 0 == ~st3~0; 991#L321 assume 0 == ~nl1~0; 992#L322 assume 0 == ~nl2~0; 888#L323 assume 0 == ~nl3~0; 889#L324 assume 0 == ~mode1~0 % 256; 919#L325 assume 0 == ~mode2~0 % 256; 942#L326 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 943#L306-1 init_#res := init_~tmp___5~0; 1003#L391 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 1004#L485 assume !(0 == main_~i2~0); 894#L485-2 ~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; 895#L499-2 [2021-10-28 23:25:14,621 INFO L793 eck$LassoCheckResult]: Loop: 895#L499-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1048#L75 assume !(0 != ~mode1~0 % 256); 1047#L100 assume ~r1~0 < 2; 1017#L101 assume !(0 != ~ep12~0 % 256); 963#L101-2 assume !(0 != ~ep13~0 % 256); 961#L100-1 ~mode1~0 := 1; 932#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1046#L118 assume !(0 != ~mode2~0 % 256); 1010#L143 assume !(~r2~0 < 2); 955#L143-1 ~mode2~0 := 1; 1033#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1031#L161 assume !(0 != ~mode3~0 % 256); 1028#L186 assume !(~r3~0 < 2); 936#L186-1 ~mode3~0 := 1; 892#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; 893#L399 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 993#L400 assume ~st1~0 + ~nl1~0 <= 1; 901#L401 assume ~st2~0 + ~nl2~0 <= 1; 902#L402 assume ~st3~0 + ~nl3~0 <= 1; 1021#L403 assume !(~r1~0 >= 2); 956#L406 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 957#L407 assume ~r1~0 < 2; 1020#L412 assume !(~r1~0 >= 2); 922#L416 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 923#L417 assume ~r1~0 < 2;check_~tmp~1 := 1; 1052#L399-1 check_#res := check_~tmp~1; 1051#L447 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; 1050#L529 assume !(0 == assert_~arg % 256); 1049#L524 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 895#L499-2 [2021-10-28 23:25:14,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1849055478, now seen corresponding path program 2 times [2021-10-28 23:25:14,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41581993] [2021-10-28 23:25:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,644 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:14,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash 365017361, now seen corresponding path program 1 times [2021-10-28 23:25:14,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433606956] [2021-10-28 23:25:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,695 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:14,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1685413828, now seen corresponding path program 1 times [2021-10-28 23:25:14,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:14,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439539549] [2021-10-28 23:25:14,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:14,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:14,793 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 23:25:14,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:14,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439539549] [2021-10-28 23:25:14,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439539549] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:14,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:14,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:14,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95601145] [2021-10-28 23:25:15,512 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:15,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:15,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:15,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:15,514 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:25:15,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:15,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:15,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:15,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-28 23:25:15,515 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:15,515 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:15,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:15,541 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 23:25:15,546 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 23:25:15,556 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 23:25:15,559 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 23:25:15,561 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 23:25:15,563 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 23:25:15,567 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 23:25:15,570 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 23:25:15,574 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 23:25:15,576 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 23:25:15,582 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 23:25:15,584 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 23:25:15,588 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 23:25:15,590 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 23:25:15,592 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 23:25:15,610 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 23:25:15,612 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 23:25:15,616 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 23:25:15,618 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 23:25:15,620 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 23:25:15,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:15,989 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:25:15,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:15,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:25:16,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:25:16,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:25:16,032 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:25:16,033 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 23:25:16,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:25:16,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:25:16,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:25:16,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:25:16,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:25:16,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:25:16,297 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:25:16,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,304 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:16,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:16,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:16,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:16,304 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:25:16,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:16,304 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:16,304 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.1.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-28 23:25:16,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:16,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:16,308 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 23:25:16,323 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 23:25:16,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:16,340 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 23:25:16,343 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 23:25:16,345 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 23:25:16,347 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 23:25:16,354 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 23:25:16,357 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 23:25:16,361 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 23:25:16,363 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 23:25:16,369 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 23:25:16,371 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 23:25:16,376 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 23:25:16,378 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 23:25:16,381 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 23:25:16,382 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 23:25:16,387 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 23:25:16,389 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 23:25:16,390 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 23:25:16,393 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 23:25:16,745 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:16,749 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:25:16,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:16,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:16,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:16,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:16,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:16,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:16,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:16,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:16,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:25:16,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:16,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,833 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,839 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 23:25:16,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:16,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:16,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:16,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:16,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:16,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:16,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:16,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:25:16,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:16,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,910 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,916 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 23:25:16,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:16,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:16,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:16,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:16,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:16,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:16,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:16,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:25:16,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:16,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:16,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:16,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:16,978 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:16,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:25:16,988 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 23:25:16,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:16,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:16,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:16,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:16,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:16,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:16,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,032 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:25:17,037 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 23:25:17,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,073 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:25:17,074 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 23:25:17,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,105 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:25:17,109 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 23:25:17,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,162 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:25:17,167 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 23:25:17,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:17,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:25:17,205 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 23:25:17,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:17,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:17,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:17,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:17,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:17,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:17,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:17,215 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:25:17,219 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:25:17,219 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:25:17,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:17,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:17,258 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:17,273 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:25:17,273 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:25:17,273 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:25:17,274 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 23:25:17,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:25:17,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:17,312 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:25:17,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:25:17,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:17,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:17,754 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 23:25:17,757 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 23:25:17,758 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 171 states and 254 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 23:25:17,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 171 states and 254 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 290 states and 439 transitions. Complement of second has 4 states. [2021-10-28 23:25:17,830 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 23:25:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 23:25:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2021-10-28 23:25:17,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 39 letters. Loop has 29 letters. [2021-10-28 23:25:17,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:17,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 68 letters. Loop has 29 letters. [2021-10-28 23:25:17,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:17,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 177 transitions. Stem has 39 letters. Loop has 58 letters. [2021-10-28 23:25:17,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:17,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 290 states and 439 transitions. [2021-10-28 23:25:17,847 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:17,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 290 states to 0 states and 0 transitions. [2021-10-28 23:25:17,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:25:17,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:25:17,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:25:17,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:17,848 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:17,848 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:17,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:25:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:25:17,850 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 23:25:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:17,850 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:25:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:25:17,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:25:17,850 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:17,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:25:17,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:25:17,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:25:17,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:25:17,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:25:17,851 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:17,851 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:17,851 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:25:17,851 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:25:17,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:25:17,852 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:25:17,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:25:17,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:25:17 BoogieIcfgContainer [2021-10-28 23:25:17,857 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:25:17,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:25:17,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:25:17,862 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:25:17,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:13" (3/4) ... [2021-10-28 23:25:17,865 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:25:17,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:25:17,872 INFO L168 Benchmark]: Toolchain (without parser) took 6041.05 ms. Allocated memory was 88.1 MB in the beginning and 148.9 MB in the end (delta: 60.8 MB). Free memory was 53.2 MB in the beginning and 77.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:17,873 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 57.8 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:17,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.45 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 58.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:17,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.72 ms. Allocated memory is still 88.1 MB. Free memory was 58.6 MB in the beginning and 55.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:17,874 INFO L168 Benchmark]: Boogie Preprocessor took 48.33 ms. Allocated memory is still 88.1 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:17,877 INFO L168 Benchmark]: RCFGBuilder took 911.19 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 53.7 MB in the beginning and 93.3 MB in the end (delta: -39.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:17,880 INFO L168 Benchmark]: BuchiAutomizer took 4481.92 ms. Allocated memory was 121.6 MB in the beginning and 148.9 MB in the end (delta: 27.3 MB). Free memory was 93.3 MB in the beginning and 77.5 MB in the end (delta: 15.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:17,882 INFO L168 Benchmark]: Witness Printer took 3.57 ms. Allocated memory is still 148.9 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:17,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 57.8 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.45 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 58.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.72 ms. Allocated memory is still 88.1 MB. Free memory was 58.6 MB in the beginning and 55.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.33 ms. Allocated memory is still 88.1 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 911.19 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 53.7 MB in the beginning and 93.3 MB in the end (delta: -39.6 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4481.92 ms. Allocated memory was 121.6 MB in the beginning and 148.9 MB in the end (delta: 27.3 MB). Free memory was 93.3 MB in the beginning and 77.5 MB in the end (delta: 15.8 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.57 ms. Allocated memory is still 148.9 MB. Free memory is still 77.5 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 4.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. 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 171 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 753 SDtfs, 461 SDslu, 1433 SDs, 0 SdLazy, 54 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 42ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:25:17,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:18,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4f3e42f-1b55-4f8c-b762-aaabdc3b140e/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...