./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.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_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7497e4203b86f15acb74ef94ae3bce6255aa8233294110bb99f24cde0725dc7 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:38:34,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:38:34,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:38:34,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:38:34,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:38:34,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:38:34,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:38:34,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:38:34,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:38:34,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:38:34,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:38:34,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:38:34,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:38:34,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:38:34,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:38:34,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:38:34,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:38:34,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:38:34,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:38:34,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:38:34,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:38:34,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:38:34,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:38:34,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:38:34,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:38:34,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:38:34,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:38:34,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:38:34,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:38:34,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:38:34,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:38:34,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:38:34,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:38:34,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:38:34,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:38:34,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:38:34,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:38:34,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:38:34,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:38:34,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:38:34,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:38:34,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:38:34,390 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:38:34,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:38:34,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:38:34,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:38:34,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:38:34,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:38:34,394 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:38:34,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:38:34,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:38:34,395 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:38:34,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:38:34,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:38:34,396 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:38:34,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:38:34,396 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:38:34,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:38:34,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:38:34,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:38:34,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:38:34,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:38:34,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:38:34,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:38:34,399 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:38:34,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:38:34,399 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:38:34,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:38:34,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:38:34,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:38:34,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:38:34,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:38:34,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:38:34,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:38:34,403 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:38:34,403 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_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7497e4203b86f15acb74ef94ae3bce6255aa8233294110bb99f24cde0725dc7 [2021-10-28 09:38:34,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:38:34,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:38:34,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:38:34,788 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:38:34,789 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:38:34,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2021-10-28 09:38:34,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/data/159790f5e/c2bcc154afa1489e9837be0f88357421/FLAGd35f3ffcc [2021-10-28 09:38:35,454 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:38:35,455 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2021-10-28 09:38:35,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/data/159790f5e/c2bcc154afa1489e9837be0f88357421/FLAGd35f3ffcc [2021-10-28 09:38:35,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/data/159790f5e/c2bcc154afa1489e9837be0f88357421 [2021-10-28 09:38:35,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:38:35,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:38:35,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:35,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:38:35,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:38:35,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:35" (1/1) ... [2021-10-28 09:38:35,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab458c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:35, skipping insertion in model container [2021-10-28 09:38:35,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:35" (1/1) ... [2021-10-28 09:38:35,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:38:35,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:38:36,162 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_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2021-10-28 09:38:36,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:36,180 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:38:36,253 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_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/sv-benchmarks/c/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c[11233,11246] [2021-10-28 09:38:36,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:36,282 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:38:36,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36 WrapperNode [2021-10-28 09:38:36,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:36,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:38:36,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:38:36,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:38:36,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:38:36,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:38:36,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:38:36,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:38:36,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:38:36,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:38:36,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:38:36,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:38:36,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (1/1) ... [2021-10-28 09:38:36,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:36,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:36,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:36,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:38:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:38:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:38:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:38:36,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:38:37,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:38:37,328 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-10-28 09:38:37,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:37 BoogieIcfgContainer [2021-10-28 09:38:37,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:38:37,332 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:38:37,332 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:38:37,336 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:38:37,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:38:37,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:38:35" (1/3) ... [2021-10-28 09:38:37,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f1d502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:38:37, skipping insertion in model container [2021-10-28 09:38:37,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:38:37,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:36" (2/3) ... [2021-10-28 09:38:37,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f1d502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:38:37, skipping insertion in model container [2021-10-28 09:38:37,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:38:37,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:37" (3/3) ... [2021-10-28 09:38:37,362 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2021-10-28 09:38:37,417 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:38:37,417 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:38:37,418 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:38:37,418 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:38:37,418 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:38:37,418 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:38:37,418 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:38:37,419 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:38:37,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 states, 91 states have (on average 1.7142857142857142) internal successors, (156), 91 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:37,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2021-10-28 09:38:37,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:37,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:37,480 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:37,480 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] [2021-10-28 09:38:37,480 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:38:37,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 states, 91 states have (on average 1.7142857142857142) internal successors, (156), 91 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:37,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2021-10-28 09:38:37,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:37,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:37,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:37,493 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] [2021-10-28 09:38:37,500 INFO L791 eck$LassoCheckResult]: Stem: 70#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 55#L-1true havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 87#L196true assume !(0 == ~r1~0);init_~tmp~0 := 0; 91#L196-1true init_#res := init_~tmp~0; 89#L321true main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 61#L22true assume !(0 == assume_abort_if_not_~cond); 38#L21true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 65#L393-2true [2021-10-28 09:38:37,501 INFO L793 eck$LassoCheckResult]: Loop: 65#L393-2true assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 10#L71true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 83#L75true assume !(node1_~m1~0 != ~nomsg~0); 37#L75-1true ~mode1~0 := 0; 82#L71-2true havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 13#L97true assume !(0 != ~mode2~0 % 256); 4#L110true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite8 := ~send2~0; 59#L110-2true ~p2_new~0 := (if node2_#t~ite8 % 256 <= 127 then node2_#t~ite8 % 256 else node2_#t~ite8 % 256 - 256);havoc node2_#t~ite8;~mode2~0 := 1; 77#L97-2true havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 66#L122true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 31#L125true assume !(node3_~m3~0 != ~nomsg~0); 32#L125-1true ~mode3~0 := 0; 54#L122-2true havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 67#L147true assume !(0 != ~mode4~0 % 256); 34#L160true assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 19#L160-2true ~p4_new~0 := (if node4_#t~ite10 % 256 <= 127 then node4_#t~ite10 % 256 else node4_#t~ite10 % 256 - 256);havoc node4_#t~ite10;~mode4~0 := 1; 26#L147-2true havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 57#L172true assume !(0 != ~mode5~0 % 256); 40#L185true assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite11 := ~send5~0; 64#L185-2true ~p5_new~0 := (if node5_#t~ite11 % 256 <= 127 then node5_#t~ite11 % 256 else node5_#t~ite11 % 256 - 256);havoc node5_#t~ite11;~mode5~0 := 1; 74#L172-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 43#L329true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1 := 0; 71#L329-1true check_#res := check_~tmp~1; 27#L349true main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 28#L423true assume !(0 == assert_~arg % 256); 21#L418true main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 65#L393-2true [2021-10-28 09:38:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:37,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1978587388, now seen corresponding path program 1 times [2021-10-28 09:38:37,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:37,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577194363] [2021-10-28 09:38:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:37,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:37,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:37,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577194363] [2021-10-28 09:38:37,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577194363] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:37,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:37,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:38:37,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94548727] [2021-10-28 09:38:37,789 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:38:37,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1781440156, now seen corresponding path program 1 times [2021-10-28 09:38:37,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:37,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036429965] [2021-10-28 09:38:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:37,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:38,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:38,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036429965] [2021-10-28 09:38:38,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036429965] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:38,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:38,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:38:38,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302795135] [2021-10-28 09:38:38,096 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:38:38,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:38,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:38,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:38,126 INFO L87 Difference]: Start difference. First operand has 92 states, 91 states have (on average 1.7142857142857142) internal successors, (156), 91 states have internal predecessors, (156), 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 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:38,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:38,284 INFO L93 Difference]: Finished difference Result 95 states and 155 transitions. [2021-10-28 09:38:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:38,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 155 transitions. [2021-10-28 09:38:38,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2021-10-28 09:38:38,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 87 states and 117 transitions. [2021-10-28 09:38:38,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2021-10-28 09:38:38,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2021-10-28 09:38:38,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 117 transitions. [2021-10-28 09:38:38,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:38,316 INFO L681 BuchiCegarLoop]: Abstraction has 87 states and 117 transitions. [2021-10-28 09:38:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 117 transitions. [2021-10-28 09:38:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 09:38:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 86 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2021-10-28 09:38:38,365 INFO L704 BuchiCegarLoop]: Abstraction has 87 states and 117 transitions. [2021-10-28 09:38:38,366 INFO L587 BuchiCegarLoop]: Abstraction has 87 states and 117 transitions. [2021-10-28 09:38:38,366 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:38:38,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 117 transitions. [2021-10-28 09:38:38,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2021-10-28 09:38:38,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:38,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:38,379 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] [2021-10-28 09:38:38,380 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] [2021-10-28 09:38:38,381 INFO L791 eck$LassoCheckResult]: Stem: 284#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 276#L-1 havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 277#L196 assume 0 == ~r1~0; 228#L197 assume ~id1~0 >= 0; 215#L198 assume 0 == ~st1~0; 216#L199 assume ~send1~0 == ~id1~0; 269#L200 assume 0 == ~mode1~0 % 256; 270#L201 assume ~id2~0 >= 0; 251#L202 assume 0 == ~st2~0; 252#L203 assume ~send2~0 == ~id2~0; 258#L204 assume 0 == ~mode2~0 % 256; 231#L205 assume ~id3~0 >= 0; 232#L206 assume 0 == ~st3~0; 217#L207 assume ~send3~0 == ~id3~0; 218#L208 assume 0 == ~mode3~0 % 256; 274#L209 assume ~id4~0 >= 0; 233#L210 assume 0 == ~st4~0; 234#L211 assume ~send4~0 == ~id4~0; 219#L212 assume 0 == ~mode4~0 % 256; 220#L213 assume ~id5~0 >= 0; 287#L214 assume 0 == ~st5~0; 288#L215 assume ~send5~0 == ~id5~0; 271#L216 assume 0 == ~mode5~0 % 256; 254#L217 assume ~id1~0 != ~id2~0; 255#L218 assume ~id1~0 != ~id3~0; 278#L219 assume ~id1~0 != ~id4~0; 290#L220 assume ~id1~0 != ~id5~0; 246#L221 assume ~id2~0 != ~id3~0; 244#L222 assume ~id2~0 != ~id4~0; 245#L223 assume ~id2~0 != ~id5~0; 237#L224 assume ~id3~0 != ~id4~0; 238#L225 assume ~id3~0 != ~id5~0; 235#L226 assume ~id4~0 != ~id5~0;init_~tmp~0 := 1; 236#L196-1 init_#res := init_~tmp~0; 291#L321 main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 279#L22 assume !(0 == assume_abort_if_not_~cond); 260#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 241#L393-2 [2021-10-28 09:38:38,381 INFO L793 eck$LassoCheckResult]: Loop: 241#L393-2 assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 221#L71 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 222#L75 assume !(node1_~m1~0 != ~nomsg~0); 259#L75-1 ~mode1~0 := 0; 211#L71-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 226#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 227#L100 assume !(node2_~m2~0 != ~nomsg~0); 224#L100-1 ~mode2~0 := 0; 225#L97-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 282#L122 assume !(0 != ~mode3~0 % 256); 272#L135 assume ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0;node3_#t~ite9 := ~send3~0; 273#L135-2 ~p3_new~0 := (if node3_#t~ite9 % 256 <= 127 then node3_#t~ite9 % 256 else node3_#t~ite9 % 256 - 256);havoc node3_#t~ite9;~mode3~0 := 1; 256#L122-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 275#L147 assume !(0 != ~mode4~0 % 256); 257#L160 assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite10 := ~send4~0; 239#L160-2 ~p4_new~0 := (if node4_#t~ite10 % 256 <= 127 then node4_#t~ite10 % 256 else node4_#t~ite10 % 256 - 256);havoc node4_#t~ite10;~mode4~0 := 1; 230#L147-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 247#L172 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 212#L175 assume !(node5_~m5~0 != ~nomsg~0); 213#L175-1 ~mode5~0 := 0; 281#L172-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 267#L329 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1 := 0; 265#L329-1 check_#res := check_~tmp~1; 248#L349 main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 249#L423 assume !(0 == assert_~arg % 256); 240#L418 main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 241#L393-2 [2021-10-28 09:38:38,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:38,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 1 times [2021-10-28 09:38:38,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:38,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749654391] [2021-10-28 09:38:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:38,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:38,455 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:38,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash 909200934, now seen corresponding path program 1 times [2021-10-28 09:38:38,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:38,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063938610] [2021-10-28 09:38:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:38,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:38,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:38,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:38,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063938610] [2021-10-28 09:38:38,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063938610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:38,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:38,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:38:38,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258847902] [2021-10-28 09:38:38,692 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:38:38,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:38,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:38,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:38,694 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. cyclomatic complexity: 31 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:38,751 INFO L93 Difference]: Finished difference Result 90 states and 119 transitions. [2021-10-28 09:38:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:38,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 119 transitions. [2021-10-28 09:38:38,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2021-10-28 09:38:38,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 114 transitions. [2021-10-28 09:38:38,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2021-10-28 09:38:38,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2021-10-28 09:38:38,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 114 transitions. [2021-10-28 09:38:38,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:38,758 INFO L681 BuchiCegarLoop]: Abstraction has 87 states and 114 transitions. [2021-10-28 09:38:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 114 transitions. [2021-10-28 09:38:38,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 09:38:38,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 86 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2021-10-28 09:38:38,767 INFO L704 BuchiCegarLoop]: Abstraction has 87 states and 114 transitions. [2021-10-28 09:38:38,767 INFO L587 BuchiCegarLoop]: Abstraction has 87 states and 114 transitions. [2021-10-28 09:38:38,767 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:38:38,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 114 transitions. [2021-10-28 09:38:38,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2021-10-28 09:38:38,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:38,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:38,771 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] [2021-10-28 09:38:38,772 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] [2021-10-28 09:38:38,772 INFO L791 eck$LassoCheckResult]: Stem: 473#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 465#L-1 havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 466#L196 assume 0 == ~r1~0; 417#L197 assume ~id1~0 >= 0; 404#L198 assume 0 == ~st1~0; 405#L199 assume ~send1~0 == ~id1~0; 458#L200 assume 0 == ~mode1~0 % 256; 459#L201 assume ~id2~0 >= 0; 439#L202 assume 0 == ~st2~0; 440#L203 assume ~send2~0 == ~id2~0; 447#L204 assume 0 == ~mode2~0 % 256; 418#L205 assume ~id3~0 >= 0; 419#L206 assume 0 == ~st3~0; 406#L207 assume ~send3~0 == ~id3~0; 407#L208 assume 0 == ~mode3~0 % 256; 463#L209 assume ~id4~0 >= 0; 422#L210 assume 0 == ~st4~0; 423#L211 assume ~send4~0 == ~id4~0; 408#L212 assume 0 == ~mode4~0 % 256; 409#L213 assume ~id5~0 >= 0; 476#L214 assume 0 == ~st5~0; 477#L215 assume ~send5~0 == ~id5~0; 460#L216 assume 0 == ~mode5~0 % 256; 443#L217 assume ~id1~0 != ~id2~0; 444#L218 assume ~id1~0 != ~id3~0; 467#L219 assume ~id1~0 != ~id4~0; 479#L220 assume ~id1~0 != ~id5~0; 435#L221 assume ~id2~0 != ~id3~0; 433#L222 assume ~id2~0 != ~id4~0; 434#L223 assume ~id2~0 != ~id5~0; 426#L224 assume ~id3~0 != ~id4~0; 427#L225 assume ~id3~0 != ~id5~0; 424#L226 assume ~id4~0 != ~id5~0;init_~tmp~0 := 1; 425#L196-1 init_#res := init_~tmp~0; 480#L321 main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 468#L22 assume !(0 == assume_abort_if_not_~cond); 449#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 430#L393-2 [2021-10-28 09:38:38,773 INFO L793 eck$LassoCheckResult]: Loop: 430#L393-2 assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 410#L71 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 411#L75 assume !(node1_~m1~0 != ~nomsg~0); 448#L75-1 ~mode1~0 := 0; 400#L71-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 415#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 416#L100 assume !(node2_~m2~0 != ~nomsg~0); 413#L100-1 ~mode2~0 := 0; 414#L97-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 471#L122 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 442#L125 assume !(node3_~m3~0 != ~nomsg~0); 397#L125-1 ~mode3~0 := 0; 445#L122-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 464#L147 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 450#L150 assume !(node4_~m4~0 != ~nomsg~0); 420#L150-1 ~mode4~0 := 0; 421#L147-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 438#L172 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 401#L175 assume !(node5_~m5~0 != ~nomsg~0); 402#L175-1 ~mode5~0 := 0; 470#L172-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 456#L329 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1; 457#L330 assume ~r1~0 >= 5; 453#L334 assume ~r1~0 < 5;check_~tmp~1 := 1; 454#L329-1 check_#res := check_~tmp~1; 436#L349 main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 437#L423 assume !(0 == assert_~arg % 256); 429#L418 main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 430#L393-2 [2021-10-28 09:38:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 2 times [2021-10-28 09:38:38,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:38,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073284234] [2021-10-28 09:38:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:38,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:38,810 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:38,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:38,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:38,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1050477610, now seen corresponding path program 1 times [2021-10-28 09:38:38,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:38,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979653775] [2021-10-28 09:38:38,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:38,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:38,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:38,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979653775] [2021-10-28 09:38:38,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979653775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:38,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:38,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:38:38,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594226708] [2021-10-28 09:38:38,939 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:38:38,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:38,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:38,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:38,942 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. cyclomatic complexity: 28 Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:38,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:38,987 INFO L93 Difference]: Finished difference Result 131 states and 180 transitions. [2021-10-28 09:38:38,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:38,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 180 transitions. [2021-10-28 09:38:38,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 94 [2021-10-28 09:38:38,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 131 states and 180 transitions. [2021-10-28 09:38:38,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 131 [2021-10-28 09:38:38,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 131 [2021-10-28 09:38:39,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 180 transitions. [2021-10-28 09:38:39,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:39,006 INFO L681 BuchiCegarLoop]: Abstraction has 131 states and 180 transitions. [2021-10-28 09:38:39,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 180 transitions. [2021-10-28 09:38:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-28 09:38:39,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.3740458015267176) internal successors, (180), 130 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 180 transitions. [2021-10-28 09:38:39,024 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 180 transitions. [2021-10-28 09:38:39,025 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 180 transitions. [2021-10-28 09:38:39,025 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:38:39,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 180 transitions. [2021-10-28 09:38:39,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 94 [2021-10-28 09:38:39,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:39,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:39,036 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] [2021-10-28 09:38:39,037 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 09:38:39,037 INFO L791 eck$LassoCheckResult]: Stem: 699#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(33);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0; 689#L-1 havoc main_#res;havoc main_#t~nondet12, 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~ret33, main_#t~ret34, main_#t~post35, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet12;havoc main_#t~nondet12;~id1~0 := main_#t~nondet13;havoc main_#t~nondet13;~st1~0 := main_#t~nondet14;havoc main_#t~nondet14;~send1~0 := main_#t~nondet15;havoc main_#t~nondet15;~mode1~0 := main_#t~nondet16;havoc main_#t~nondet16;~id2~0 := main_#t~nondet17;havoc main_#t~nondet17;~st2~0 := main_#t~nondet18;havoc main_#t~nondet18;~send2~0 := main_#t~nondet19;havoc main_#t~nondet19;~mode2~0 := main_#t~nondet20;havoc main_#t~nondet20;~id3~0 := main_#t~nondet21;havoc main_#t~nondet21;~st3~0 := main_#t~nondet22;havoc main_#t~nondet22;~send3~0 := main_#t~nondet23;havoc main_#t~nondet23;~mode3~0 := main_#t~nondet24;havoc main_#t~nondet24;~id4~0 := main_#t~nondet25;havoc main_#t~nondet25;~st4~0 := main_#t~nondet26;havoc main_#t~nondet26;~send4~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode4~0 := main_#t~nondet28;havoc main_#t~nondet28;~id5~0 := main_#t~nondet29;havoc main_#t~nondet29;~st5~0 := main_#t~nondet30;havoc main_#t~nondet30;~send5~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode5~0 := main_#t~nondet32;havoc main_#t~nondet32;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 690#L196 assume 0 == ~r1~0; 641#L197 assume ~id1~0 >= 0; 628#L198 assume 0 == ~st1~0; 629#L199 assume ~send1~0 == ~id1~0; 682#L200 assume 0 == ~mode1~0 % 256; 683#L201 assume ~id2~0 >= 0; 664#L202 assume 0 == ~st2~0; 665#L203 assume ~send2~0 == ~id2~0; 672#L204 assume 0 == ~mode2~0 % 256; 644#L205 assume ~id3~0 >= 0; 645#L206 assume 0 == ~st3~0; 630#L207 assume ~send3~0 == ~id3~0; 631#L208 assume 0 == ~mode3~0 % 256; 687#L209 assume ~id4~0 >= 0; 646#L210 assume 0 == ~st4~0; 647#L211 assume ~send4~0 == ~id4~0; 637#L212 assume 0 == ~mode4~0 % 256; 638#L213 assume ~id5~0 >= 0; 703#L214 assume 0 == ~st5~0; 704#L215 assume ~send5~0 == ~id5~0; 686#L216 assume 0 == ~mode5~0 % 256; 668#L217 assume ~id1~0 != ~id2~0; 669#L218 assume ~id1~0 != ~id3~0; 691#L219 assume ~id1~0 != ~id4~0; 708#L220 assume ~id1~0 != ~id5~0; 659#L221 assume ~id2~0 != ~id3~0; 657#L222 assume ~id2~0 != ~id4~0; 658#L223 assume ~id2~0 != ~id5~0; 650#L224 assume ~id3~0 != ~id4~0; 651#L225 assume ~id3~0 != ~id5~0; 648#L226 assume ~id4~0 != ~id5~0;init_~tmp~0 := 1; 649#L196-1 init_#res := init_~tmp~0; 709#L321 main_#t~ret33 := init_#res;main_~i2~0 := main_#t~ret33;havoc main_#t~ret33;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 692#L22 assume !(0 == assume_abort_if_not_~cond); 674#L21 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0 := 0; 654#L393-2 [2021-10-28 09:38:39,038 INFO L793 eck$LassoCheckResult]: Loop: 654#L393-2 assume !!(main_~i2~0 < 10);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 632#L71 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 633#L75 assume !(node1_~m1~0 != ~nomsg~0); 673#L75-1 ~mode1~0 := 0; 624#L71-2 havoc node2_#t~ite8, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 639#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 640#L100 assume !(node2_~m2~0 != ~nomsg~0); 635#L100-1 ~mode2~0 := 0; 636#L97-2 havoc node3_#t~ite9, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 695#L122 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 666#L125 assume !(node3_~m3~0 != ~nomsg~0); 621#L125-1 ~mode3~0 := 0; 667#L122-2 havoc node4_#t~ite10, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 688#L147 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 675#L150 assume !(node4_~m4~0 != ~nomsg~0); 642#L150-1 ~mode4~0 := 0; 643#L147-2 havoc node5_#t~ite11, node5_~m5~0;havoc node5_~m5~0;node5_~m5~0 := ~nomsg~0; 660#L172 assume 0 != ~mode5~0 % 256;node5_~m5~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 625#L175 assume !(node5_~m5~0 != ~nomsg~0); 626#L175-1 ~mode5~0 := 0; 694#L172-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 701#L329 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1; 710#L330 assume !(~r1~0 >= 5); 706#L333 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0; 707#L334 assume ~r1~0 < 5;check_~tmp~1 := 1; 698#L329-1 check_#res := check_~tmp~1; 661#L349 main_#t~ret34 := check_#res;main_~c1~0 := main_#t~ret34;havoc main_#t~ret34;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 662#L423 assume !(0 == assert_~arg % 256); 653#L418 main_#t~post35 := main_~i2~0;main_~i2~0 := 1 + main_#t~post35;havoc main_#t~post35; 654#L393-2 [2021-10-28 09:38:39,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1992034189, now seen corresponding path program 3 times [2021-10-28 09:38:39,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:39,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295818832] [2021-10-28 09:38:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:39,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:39,070 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:39,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:39,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:39,119 INFO L85 PathProgramCache]: Analyzing trace with hash -148360473, now seen corresponding path program 1 times [2021-10-28 09:38:39,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:39,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588993905] [2021-10-28 09:38:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:39,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:39,149 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:39,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:39,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:39,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1947490379, now seen corresponding path program 1 times [2021-10-28 09:38:39,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:39,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565928220] [2021-10-28 09:38:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:39,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:39,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:39,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565928220] [2021-10-28 09:38:39,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565928220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:39,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:39,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:38:39,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276704572] [2021-10-28 09:38:40,763 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:38:40,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:38:40,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:38:40,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:38:40,764 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:38:40,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:40,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:38:40,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:38:40,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.5.ufo.BOUNDED-10.pals.c_Iteration4_Loop [2021-10-28 09:38:40,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:38:40,766 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:38:40,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:40,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:41,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:38:41,737 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:38:41,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:41,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:41,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:38:41,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:38:41,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:38:41,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:41,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:41,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:41,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:41,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:38:41,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:38:41,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:38:42,220 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:38:42,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:42,229 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:38:42,229 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:38:42,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:38:42,230 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:38:42,230 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:38:42,230 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:42,230 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:38:42,230 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:38:42,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.5.ufo.BOUNDED-10.pals.c_Iteration4_Loop [2021-10-28 09:38:42,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:38:42,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:38:42,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,308 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 09:38:42,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:42,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:38:43,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:38:43,108 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:38:43,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:43,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:43,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:43,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:38:43,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:38:43,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:38:43,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:38:43,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:38:43,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:38:43,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:38:43,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:38:43,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:38:43,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:38:43,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:43,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:43,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:43,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:43,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:38:43,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:38:43,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:38:43,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:38:43,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:38:43,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:38:43,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:38:43,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:38:43,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:38:43,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:38:43,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:43,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:43,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:43,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:43,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:38:43,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:38:43,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:38:43,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:38:43,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:38:43,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:38:43,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:38:43,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:38:43,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:38:43,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:38:43,282 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:38:43,282 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:38:43,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:43,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:43,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:43,347 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:38:43,348 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:38:43,348 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:38:43,349 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 19 Supporting invariants [] [2021-10-28 09:38:43,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:38:43,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:43,394 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:38:43,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:43,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:38:43,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:43,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:43,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:38:43,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:44,059 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:38:44,060 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 131 states and 180 transitions. cyclomatic complexity: 50 Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:44,139 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 131 states and 180 transitions. cyclomatic complexity: 50. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 224 states and 323 transitions. Complement of second has 4 states. [2021-10-28 09:38:44,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:38:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2021-10-28 09:38:44,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 114 transitions. Stem has 37 letters. Loop has 29 letters. [2021-10-28 09:38:44,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:38:44,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 114 transitions. Stem has 66 letters. Loop has 29 letters. [2021-10-28 09:38:44,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:38:44,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 114 transitions. Stem has 37 letters. Loop has 58 letters. [2021-10-28 09:38:44,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:38:44,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 323 transitions. [2021-10-28 09:38:44,160 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:38:44,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 0 states and 0 transitions. [2021-10-28 09:38:44,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:38:44,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:38:44,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:38:44,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:44,162 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:38:44,162 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:38:44,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:44,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:44,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:44,163 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:44,163 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:38:44,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:38:44,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:38:44,164 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:38:44,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:38:44,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:38:44,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:38:44,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:38:44,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:44,165 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:38:44,165 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:38:44,165 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:38:44,166 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:38:44,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:38:44,166 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:38:44,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:38:44,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:38:44 BoogieIcfgContainer [2021-10-28 09:38:44,174 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:38:44,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:38:44,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:38:44,176 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:38:44,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:37" (3/4) ... [2021-10-28 09:38:44,180 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:38:44,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:38:44,183 INFO L168 Benchmark]: Toolchain (without parser) took 8381.26 ms. Allocated memory was 86.0 MB in the beginning and 140.5 MB in the end (delta: 54.5 MB). Free memory was 49.0 MB in the beginning and 81.4 MB in the end (delta: -32.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:44,184 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:38:44,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.68 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 48.8 MB in the beginning and 84.2 MB in the end (delta: -35.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:44,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.14 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 81.7 MB in the end (delta: 2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:38:44,192 INFO L168 Benchmark]: Boogie Preprocessor took 54.81 ms. Allocated memory is still 111.1 MB. Free memory was 81.7 MB in the beginning and 79.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:44,193 INFO L168 Benchmark]: RCFGBuilder took 895.69 ms. Allocated memory is still 111.1 MB. Free memory was 79.7 MB in the beginning and 60.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:44,194 INFO L168 Benchmark]: BuchiAutomizer took 6842.30 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 60.3 MB in the beginning and 81.4 MB in the end (delta: -21.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:44,194 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 140.5 MB. Free memory is still 81.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:38:44,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.68 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 48.8 MB in the beginning and 84.2 MB in the end (delta: -35.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.14 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 81.7 MB in the end (delta: 2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.81 ms. Allocated memory is still 111.1 MB. Free memory was 81.7 MB in the beginning and 79.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 895.69 ms. Allocated memory is still 111.1 MB. Free memory was 79.7 MB in the beginning and 60.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6842.30 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 60.3 MB in the beginning and 81.4 MB in the end (delta: -21.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.39 ms. Allocated memory is still 140.5 MB. Free memory is still 81.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 19 + -2 * i2 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 6.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 5.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 131 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 258 SDslu, 937 SDs, 0 SdLazy, 36 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital166 mio100 ax100 hnf100 lsp37 ukn100 mio100 lsp100 div103 bol100 ite100 ukn100 eq221 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:38:44,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5d27f8-2530-4fc1-acec-d4eade7ad5a4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...