./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f728e04159b75fd4f86d9e171d07387390897d2fdfdd24db8ac526a2f9d83e1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:56:12,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:56:12,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:56:12,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:56:12,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:56:12,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:56:12,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:56:12,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:56:12,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:56:12,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:56:12,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:56:12,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:56:12,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:56:12,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:56:12,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:56:12,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:56:12,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:56:12,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:56:12,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:56:12,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:56:12,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:56:12,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:56:12,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:56:12,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:56:12,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:56:12,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:56:12,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:56:12,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:56:12,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:56:12,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:56:12,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:56:12,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:56:12,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:56:12,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:56:12,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:56:12,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:56:12,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:56:12,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:56:12,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:56:12,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:56:12,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:56:12,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:56:12,635 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:56:12,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:56:12,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:56:12,637 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:56:12,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:56:12,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:56:12,639 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:56:12,639 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:56:12,639 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:56:12,640 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:56:12,641 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:56:12,641 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:56:12,641 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:56:12,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:56:12,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:56:12,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:56:12,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:56:12,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:56:12,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:56:12,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:56:12,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:56:12,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:56:12,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:56:12,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:56:12,644 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:56:12,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:56:12,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:56:12,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:56:12,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:56:12,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:56:12,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:56:12,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:56:12,649 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:56:12,649 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_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f728e04159b75fd4f86d9e171d07387390897d2fdfdd24db8ac526a2f9d83e1 [2021-10-28 22:56:12,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:56:13,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:56:13,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:56:13,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:56:13,013 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:56:13,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c [2021-10-28 22:56:13,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/data/2ad7c9a4c/83e085143d674229a34c59b702a72371/FLAGbcea988bb [2021-10-28 22:56:13,692 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:56:13,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c [2021-10-28 22:56:13,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/data/2ad7c9a4c/83e085143d674229a34c59b702a72371/FLAGbcea988bb [2021-10-28 22:56:14,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/data/2ad7c9a4c/83e085143d674229a34c59b702a72371 [2021-10-28 22:56:14,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:56:14,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:56:14,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:56:14,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:56:14,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:56:14,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c22ea10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14, skipping insertion in model container [2021-10-28 22:56:14,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:56:14,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:56:14,419 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_5e2dbf65-c250-4c25-999b-03ae1e199ae4/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c[12762,12775] [2021-10-28 22:56:14,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:56:14,431 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:56:14,536 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_5e2dbf65-c250-4c25-999b-03ae1e199ae4/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.ufo.BOUNDED-6.pals.c[12762,12775] [2021-10-28 22:56:14,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:56:14,553 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:56:14,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14 WrapperNode [2021-10-28 22:56:14,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:56:14,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:56:14,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:56:14,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:56:14,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:56:14,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:56:14,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:56:14,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:56:14,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:56:14,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:56:14,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:56:14,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:56:14,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (1/1) ... [2021-10-28 22:56:14,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:14,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:14,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:14,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:56:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:56:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:56:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:56:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:56:15,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:56:15,626 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-28 22:56:15,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:15 BoogieIcfgContainer [2021-10-28 22:56:15,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:56:15,646 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:56:15,646 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:56:15,650 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:56:15,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:56:15,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:56:14" (1/3) ... [2021-10-28 22:56:15,652 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51b5a794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:56:15, skipping insertion in model container [2021-10-28 22:56:15,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:56:15,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:14" (2/3) ... [2021-10-28 22:56:15,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51b5a794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:56:15, skipping insertion in model container [2021-10-28 22:56:15,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:56:15,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:15" (3/3) ... [2021-10-28 22:56:15,655 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c [2021-10-28 22:56:15,702 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:56:15,702 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:56:15,702 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:56:15,702 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:56:15,702 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:56:15,703 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:56:15,703 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:56:15,703 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:56:15,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:15,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-28 22:56:15,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:15,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:15,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:15,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:15,764 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:56:15,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:15,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2021-10-28 22:56:15,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:15,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:15,776 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:15,777 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:15,785 INFO L791 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 46#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 95#L228true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 51#L231-1true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 34#L241true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 30#L244-1true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 61#L254true assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 64#L257-1true init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 27#L267true assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 15#L270-1true init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 102#L280true assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 81#L283-1true init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 119#L293true assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 79#L296-1true init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 129#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 116#L306-1true init_#res := init_~tmp___5~0; 111#L415true main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 53#L509true assume !(0 == main_~i2~0); 90#L509-2true ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 35#L523-2true [2021-10-28 22:56:15,786 INFO L793 eck$LassoCheckResult]: Loop: 35#L523-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 70#L75true assume !(0 != ~mode1~0 % 256); 66#L100true assume !(~r1~0 < 2); 84#L100-1true ~mode1~0 := 1; 117#L75-2true havoc node2_#t~ite9, node2_#t~ite10; 101#L118true assume !(0 != ~mode2~0 % 256); 105#L143true assume !(~r2~0 < 2); 96#L143-1true ~mode2~0 := 1; 67#L118-2true havoc node3_#t~ite11, node3_#t~ite12; 14#L161true assume !(0 != ~mode3~0 % 256); 74#L186true assume !(~r3~0 < 2); 29#L186-1true ~mode3~0 := 1; 6#L161-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 21#L423true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 71#L423-1true check_#res := check_~tmp~1; 28#L471true main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 87#L553true assume !(0 == assert_~arg % 256); 72#L548true main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 35#L523-2true [2021-10-28 22:56:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2021-10-28 22:56:15,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:15,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055785453] [2021-10-28 22:56:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:15,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:16,087 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 22:56:16,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:16,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055785453] [2021-10-28 22:56:16,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055785453] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:16,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:16,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:56:16,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491109198] [2021-10-28 22:56:16,097 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:56:16,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1518597457, now seen corresponding path program 1 times [2021-10-28 22:56:16,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:16,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004895758] [2021-10-28 22:56:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:16,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:16,308 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 22:56:16,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:16,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004895758] [2021-10-28 22:56:16,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004895758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:16,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:16,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:56:16,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955125036] [2021-10-28 22:56:16,311 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:56:16,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:16,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:56:16,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:56:16,342 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.751937984496124) internal successors, (226), 129 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:16,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:56:16,467 INFO L93 Difference]: Finished difference Result 134 states and 226 transitions. [2021-10-28 22:56:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:56:16,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 226 transitions. [2021-10-28 22:56:16,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 22:56:16,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 210 transitions. [2021-10-28 22:56:16,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-10-28 22:56:16,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-10-28 22:56:16,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 210 transitions. [2021-10-28 22:56:16,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:16,494 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-10-28 22:56:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 210 transitions. [2021-10-28 22:56:16,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-28 22:56:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.68) internal successors, (210), 124 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 210 transitions. [2021-10-28 22:56:16,539 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-10-28 22:56:16,540 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 210 transitions. [2021-10-28 22:56:16,540 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:56:16,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 210 transitions. [2021-10-28 22:56:16,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 22:56:16,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:16,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:16,548 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:16,548 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:16,548 INFO L791 eck$LassoCheckResult]: Stem: 405#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 353#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 354#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 360#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 337#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 295#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 335#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 345#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 331#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 299#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 309#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 381#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 386#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 347#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 385#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0 := 0; 284#L306-1 init_#res := init_~tmp___5~0; 403#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 362#L509 assume !(0 == main_~i2~0); 363#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 338#L523-2 [2021-10-28 22:56:16,549 INFO L793 eck$LassoCheckResult]: Loop: 338#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 339#L75 assume !(0 != ~mode1~0 % 256); 375#L100 assume !(~r1~0 < 2); 355#L100-1 ~mode1~0 := 1; 328#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 395#L118 assume !(0 != ~mode2~0 % 256); 396#L143 assume !(~r2~0 < 2); 350#L143-1 ~mode2~0 := 1; 377#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 306#L161 assume !(0 != ~mode3~0 % 256); 308#L186 assume !(~r3~0 < 2); 334#L186-1 ~mode3~0 := 1; 287#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 288#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 319#L424 assume ~st1~0 + ~nl1~0 <= 1; 401#L425 assume ~st2~0 + ~nl2~0 <= 1; 402#L426 assume ~st3~0 + ~nl3~0 <= 1; 394#L427 assume ~r1~0 >= 2; 311#L431 assume ~r1~0 < 2; 351#L436 assume ~r1~0 >= 2; 322#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 323#L423-1 check_#res := check_~tmp~1; 332#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 333#L553 assume !(0 == assert_~arg % 256); 379#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 338#L523-2 [2021-10-28 22:56:16,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2021-10-28 22:56:16,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:16,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239431233] [2021-10-28 22:56:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:16,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:16,695 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 22:56:16,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:16,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239431233] [2021-10-28 22:56:16,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239431233] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:16,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:16,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:56:16,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356079715] [2021-10-28 22:56:16,717 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:56:16,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 1 times [2021-10-28 22:56:16,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:16,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33946829] [2021-10-28 22:56:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:16,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:16,779 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 22:56:16,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:16,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33946829] [2021-10-28 22:56:16,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33946829] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:16,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:16,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:56:16,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611570275] [2021-10-28 22:56:16,784 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:56:16,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:16,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:56:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:56:16,785 INFO L87 Difference]: Start difference. First operand 125 states and 210 transitions. cyclomatic complexity: 86 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:56:16,906 INFO L93 Difference]: Finished difference Result 196 states and 320 transitions. [2021-10-28 22:56:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:56:16,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 320 transitions. [2021-10-28 22:56:16,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 22:56:16,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 193 states and 291 transitions. [2021-10-28 22:56:16,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2021-10-28 22:56:16,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2021-10-28 22:56:16,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 193 states and 291 transitions. [2021-10-28 22:56:16,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:16,924 INFO L681 BuchiCegarLoop]: Abstraction has 193 states and 291 transitions. [2021-10-28 22:56:16,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states and 291 transitions. [2021-10-28 22:56:16,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2021-10-28 22:56:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2021-10-28 22:56:16,933 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-10-28 22:56:16,933 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2021-10-28 22:56:16,933 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:56:16,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2021-10-28 22:56:16,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 68 [2021-10-28 22:56:16,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:16,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:16,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:16,937 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:16,937 INFO L791 eck$LassoCheckResult]: Stem: 739#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 687#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 688#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 694#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 671#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 628#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 668#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 679#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 664#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 632#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 642#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 715#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 721#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 681#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 719#L306 assume ~id1~0 != ~id2~0; 723#L307 assume ~id1~0 != ~id3~0; 637#L308 assume ~id2~0 != ~id3~0; 638#L309 assume ~id1~0 >= 0; 722#L310 assume ~id2~0 >= 0; 701#L311 assume ~id3~0 >= 0; 702#L312 assume 0 == ~r1~0; 662#L313 assume 0 == ~r2~0; 663#L314 assume 0 == ~r3~0; 692#L315 assume 0 != init_~r122~0 % 256; 693#L316 assume 0 != init_~r132~0 % 256; 618#L317 assume 0 != init_~r212~0 % 256; 619#L318 assume 0 != init_~r232~0 % 256; 740#L319 assume 0 != init_~r312~0 % 256; 727#L320 assume 0 != init_~r322~0 % 256; 717#L321 assume ~max1~0 == ~id1~0; 718#L322 assume ~max2~0 == ~id2~0; 616#L323 assume ~max3~0 == ~id3~0; 617#L324 assume 0 == ~st1~0; 645#L325 assume 0 == ~st2~0; 670#L326 assume 0 == ~st3~0; 653#L327 assume 0 == ~nl1~0; 654#L328 assume 0 == ~nl2~0; 682#L329 assume 0 == ~nl3~0; 683#L330 assume 0 == ~mode1~0 % 256; 635#L331 assume 0 == ~mode2~0 % 256; 636#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 669#L306-1 init_#res := init_~tmp___5~0; 737#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 699#L509 assume !(0 == main_~i2~0); 700#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 674#L523-2 [2021-10-28 22:56:16,938 INFO L793 eck$LassoCheckResult]: Loop: 674#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 675#L75 assume !(0 != ~mode1~0 % 256); 709#L100 assume !(~r1~0 < 2); 689#L100-1 ~mode1~0 := 1; 661#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 729#L118 assume !(0 != ~mode2~0 % 256); 730#L143 assume !(~r2~0 < 2); 684#L143-1 ~mode2~0 := 1; 711#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 639#L161 assume !(0 != ~mode3~0 % 256); 641#L186 assume !(~r3~0 < 2); 667#L186-1 ~mode3~0 := 1; 620#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 621#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 650#L424 assume ~st1~0 + ~nl1~0 <= 1; 735#L425 assume ~st2~0 + ~nl2~0 <= 1; 736#L426 assume ~st3~0 + ~nl3~0 <= 1; 728#L427 assume ~r1~0 >= 2; 644#L431 assume ~r1~0 < 2; 685#L436 assume ~r1~0 >= 2; 655#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 656#L423-1 check_#res := check_~tmp~1; 665#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 666#L553 assume !(0 == assert_~arg % 256); 713#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 674#L523-2 [2021-10-28 22:56:16,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:16,938 INFO L85 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2021-10-28 22:56:16,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:16,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739774624] [2021-10-28 22:56:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:16,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:16,987 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:17,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:17,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:17,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1802356988, now seen corresponding path program 2 times [2021-10-28 22:56:17,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:17,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419121093] [2021-10-28 22:56:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:17,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:17,177 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 22:56:17,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:17,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419121093] [2021-10-28 22:56:17,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419121093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:17,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:17,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:56:17,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100972441] [2021-10-28 22:56:17,180 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:56:17,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:17,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:56:17,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:56:17,183 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:56:17,229 INFO L93 Difference]: Finished difference Result 177 states and 260 transitions. [2021-10-28 22:56:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:56:17,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 260 transitions. [2021-10-28 22:56:17,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2021-10-28 22:56:17,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 260 transitions. [2021-10-28 22:56:17,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-28 22:56:17,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-28 22:56:17,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 260 transitions. [2021-10-28 22:56:17,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:17,239 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 260 transitions. [2021-10-28 22:56:17,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 260 transitions. [2021-10-28 22:56:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-10-28 22:56:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.4689265536723164) internal successors, (260), 176 states have internal predecessors, (260), 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 22:56:17,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 260 transitions. [2021-10-28 22:56:17,259 INFO L704 BuchiCegarLoop]: Abstraction has 177 states and 260 transitions. [2021-10-28 22:56:17,259 INFO L587 BuchiCegarLoop]: Abstraction has 177 states and 260 transitions. [2021-10-28 22:56:17,259 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:56:17,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 260 transitions. [2021-10-28 22:56:17,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 120 [2021-10-28 22:56:17,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:17,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:17,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:17,263 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 22:56:17,263 INFO L791 eck$LassoCheckResult]: Stem: 1057#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(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0; 994#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~ret40, main_#t~ret41, main_#t~post42, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep13~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep31~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep32~0 := main_#t~nondet18;havoc main_#t~nondet18;~id1~0 := main_#t~nondet19;havoc main_#t~nondet19;~r1~0 := main_#t~nondet20;havoc main_#t~nondet20;~st1~0 := main_#t~nondet21;havoc main_#t~nondet21;~nl1~0 := main_#t~nondet22;havoc main_#t~nondet22;~m1~0 := main_#t~nondet23;havoc main_#t~nondet23;~max1~0 := main_#t~nondet24;havoc main_#t~nondet24;~mode1~0 := main_#t~nondet25;havoc main_#t~nondet25;~id2~0 := main_#t~nondet26;havoc main_#t~nondet26;~r2~0 := main_#t~nondet27;havoc main_#t~nondet27;~st2~0 := main_#t~nondet28;havoc main_#t~nondet28;~nl2~0 := main_#t~nondet29;havoc main_#t~nondet29;~m2~0 := main_#t~nondet30;havoc main_#t~nondet30;~max2~0 := main_#t~nondet31;havoc main_#t~nondet31;~mode2~0 := main_#t~nondet32;havoc main_#t~nondet32;~id3~0 := main_#t~nondet33;havoc main_#t~nondet33;~r3~0 := main_#t~nondet34;havoc main_#t~nondet34;~st3~0 := main_#t~nondet35;havoc main_#t~nondet35;~nl3~0 := main_#t~nondet36;havoc main_#t~nondet36;~m3~0 := main_#t~nondet37;havoc main_#t~nondet37;~max3~0 := main_#t~nondet38;havoc main_#t~nondet38;~mode3~0 := main_#t~nondet39;havoc main_#t~nondet39;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r211~0, init_~r231~0, init_~r311~0, init_~r321~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r212~0, init_~tmp___1~0, init_~r232~0, init_~tmp___2~0, init_~r312~0, init_~tmp___3~0, init_~r322~0, init_~tmp___4~0, init_~tmp___5~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r212~0;havoc init_~tmp___1~0;havoc init_~r232~0;havoc init_~tmp___2~0;havoc init_~r312~0;havoc init_~tmp___3~0;havoc init_~r322~0;havoc init_~tmp___4~0;havoc init_~tmp___5~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0; 995#L228 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1001#L231-1 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 978#L241 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 936#L244-1 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 976#L254 assume 0 != init_~r211~0 % 256;init_~tmp___1~0 := 1; 986#L257-1 init_~r212~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 971#L267 assume 0 != init_~r231~0 % 256;init_~tmp___2~0 := 1; 940#L270-1 init_~r232~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 950#L280 assume 0 != init_~r311~0 % 256;init_~tmp___3~0 := 1; 1024#L283-1 init_~r312~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1031#L293 assume 0 != init_~r321~0 % 256;init_~tmp___4~0 := 1; 988#L296-1 init_~r322~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1029#L306 assume ~id1~0 != ~id2~0; 1033#L307 assume ~id1~0 != ~id3~0; 945#L308 assume ~id2~0 != ~id3~0; 946#L309 assume ~id1~0 >= 0; 1032#L310 assume ~id2~0 >= 0; 1008#L311 assume ~id3~0 >= 0; 1009#L312 assume 0 == ~r1~0; 969#L313 assume 0 == ~r2~0; 970#L314 assume 0 == ~r3~0; 997#L315 assume 0 != init_~r122~0 % 256; 998#L316 assume 0 != init_~r132~0 % 256; 926#L317 assume 0 != init_~r212~0 % 256; 927#L318 assume 0 != init_~r232~0 % 256; 1060#L319 assume 0 != init_~r312~0 % 256; 1038#L320 assume 0 != init_~r322~0 % 256; 1026#L321 assume ~max1~0 == ~id1~0; 1027#L322 assume ~max2~0 == ~id2~0; 924#L323 assume ~max3~0 == ~id3~0; 925#L324 assume 0 == ~st1~0; 951#L325 assume 0 == ~st2~0; 977#L326 assume 0 == ~st3~0; 961#L327 assume 0 == ~nl1~0; 962#L328 assume 0 == ~nl2~0; 989#L329 assume 0 == ~nl3~0; 990#L330 assume 0 == ~mode1~0 % 256; 943#L331 assume 0 == ~mode2~0 % 256; 944#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0 := 1; 975#L306-1 init_#res := init_~tmp___5~0; 1054#L415 main_#t~ret40 := init_#res;main_~i2~0 := main_#t~ret40;havoc main_#t~ret40; 1003#L509 assume !(0 == main_~i2~0); 1004#L509-2 ~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0 := 0; 1037#L523-2 [2021-10-28 22:56:17,264 INFO L793 eck$LassoCheckResult]: Loop: 1037#L523-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8; 1062#L75 assume !(0 != ~mode1~0 % 256); 1061#L100 assume ~r1~0 < 2; 1058#L101 assume !(0 != ~ep12~0 % 256); 1000#L101-2 assume !(0 != ~ep13~0 % 256); 996#L100-1 ~mode1~0 := 1; 1095#L75-2 havoc node2_#t~ite9, node2_#t~ite10; 1092#L118 assume !(0 != ~mode2~0 % 256); 1088#L143 assume !(~r2~0 < 2); 1040#L143-1 ~mode2~0 := 1; 1019#L118-2 havoc node3_#t~ite11, node3_#t~ite12; 1020#L161 assume !(0 != ~mode3~0 % 256); 1078#L186 assume !(~r3~0 < 2); 1075#L186-1 ~mode3~0 := 1; 1073#L161-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1072#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 1071#L424 assume ~st1~0 + ~nl1~0 <= 1; 1070#L425 assume ~st2~0 + ~nl2~0 <= 1; 1069#L426 assume ~st3~0 + ~nl3~0 <= 1; 1068#L427 assume !(~r1~0 >= 2); 952#L430 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 953#L431 assume ~r1~0 < 2; 1067#L436 assume !(~r1~0 >= 2); 1048#L440 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 1049#L441 assume ~r1~0 < 2;check_~tmp~1 := 1; 1066#L423-1 check_#res := check_~tmp~1; 1065#L471 main_#t~ret41 := check_#res;main_~c1~0 := main_#t~ret41;havoc main_#t~ret41;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1064#L553 assume !(0 == assert_~arg % 256); 1063#L548 main_#t~post42 := main_~i2~0;main_~i2~0 := 1 + main_#t~post42;havoc main_#t~post42; 1037#L523-2 [2021-10-28 22:56:17,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2021-10-28 22:56:17,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:17,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102298034] [2021-10-28 22:56:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:17,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:17,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:17,349 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:17,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:17,349 INFO L85 PathProgramCache]: Analyzing trace with hash -480396747, now seen corresponding path program 1 times [2021-10-28 22:56:17,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:17,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217160002] [2021-10-28 22:56:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:17,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:17,359 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:17,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:17,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:17,372 INFO L85 PathProgramCache]: Analyzing trace with hash 472050935, now seen corresponding path program 1 times [2021-10-28 22:56:17,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:17,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490250204] [2021-10-28 22:56:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:17,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:17,481 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 22:56:17,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:17,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490250204] [2021-10-28 22:56:17,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490250204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:17,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:17,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:56:17,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377951985] [2021-10-28 22:56:18,215 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:56:18,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:56:18,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:56:18,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:56:18,217 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 22:56:18,217 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:18,217 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:56:18,217 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:56:18,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-28 22:56:18,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:56:18,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:56:18,239 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 22:56:18,245 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 22:56:18,250 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 22:56:18,260 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 22:56:18,268 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 22:56:18,270 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 22:56:18,272 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 22:56:18,280 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 22:56:18,282 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 22:56:18,288 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 22:56:18,290 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 22:56:18,302 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 22:56:18,304 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 22:56:18,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:18,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:18,314 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 22:56:18,337 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 22:56:18,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:18,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:18,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:18,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:18,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:56:18,827 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 22:56:18,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:18,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:18,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:18,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 22:56:18,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 22:56:18,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:56:18,880 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 22:56:18,880 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 22:56:18,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:18,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:18,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:18,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:18,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:56:18,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 22:56:18,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 22:56:18,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:18,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:18,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:18,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:18,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:56:18,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 22:56:18,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 22:56:19,106 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 22:56:19,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:19,112 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:56:19,112 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:56:19,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:56:19,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:56:19,112 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:56:19,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:56:19,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:56:19,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2021-10-28 22:56:19,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:56:19,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:56:19,117 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 22:56:19,134 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 22:56:19,139 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 22:56:19,150 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 22:56:19,153 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 22:56:19,156 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 22:56:19,172 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 22:56:19,177 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 22:56:19,180 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 22:56:19,186 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 22:56:19,188 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 22:56:19,193 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 22:56:19,195 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 22:56:19,202 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 22:56:19,204 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 22:56:19,216 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 22:56:19,218 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 22:56:19,222 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 22:56:19,224 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 22:56:19,226 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 22:56:19,229 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 22:56:19,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:56:19,613 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:56:19,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:19,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:19,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:56:19,629 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 22:56:19,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:19,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:19,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:19,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:19,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:19,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:19,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:19,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:19,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:19,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:19,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:19,699 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 22:56:19,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:19,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:19,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:19,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:19,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:19,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:19,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:19,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:56:19,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:19,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:19,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:19,772 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:19,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:56:19,778 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 22:56:19,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:19,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:19,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:19,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:19,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:19,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:19,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:19,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:19,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:19,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:19,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:19,854 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 22:56:19,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:19,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:19,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:19,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:19,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:19,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:19,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:19,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:56:19,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:19,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:19,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:19,927 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:19,934 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 22:56:19,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:56:19,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:19,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:19,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:19,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:19,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:19,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:19,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:19,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:19,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-28 22:56:19,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:19,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:19,983 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:19,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:56:19,986 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 22:56:20,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:20,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:20,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:20,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:20,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:20,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:20,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:20,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:20,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:20,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:20,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:20,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:20,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:56:20,032 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 22:56:20,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:20,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:20,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:20,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:20,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:20,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:20,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:20,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:20,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:20,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:20,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:20,088 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:20,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:56:20,090 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 22:56:20,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:20,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:20,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:20,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:20,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:20,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:20,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:20,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:20,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:20,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:20,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:20,131 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:20,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:56:20,132 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 22:56:20,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:20,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:20,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:20,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:20,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:20,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:20,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:20,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:56:20,146 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 22:56:20,146 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 22:56:20,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:20,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:20,156 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:20,161 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:56:20,162 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 22:56:20,162 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:56:20,162 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] [2021-10-28 22:56:20,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:56:20,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:20,193 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 22:56:20,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:20,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:56:20,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:20,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:20,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:56:20,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:20,782 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 22:56:20,786 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 22:56:20,787 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 177 states and 260 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:20,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 177 states and 260 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 296 states and 445 transitions. Complement of second has 4 states. [2021-10-28 22:56:20,840 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 22:56:20,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:20,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2021-10-28 22:56:20,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 29 letters. [2021-10-28 22:56:20,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:20,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 74 letters. Loop has 29 letters. [2021-10-28 22:56:20,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:20,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 45 letters. Loop has 58 letters. [2021-10-28 22:56:20,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:20,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 296 states and 445 transitions. [2021-10-28 22:56:20,853 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:56:20,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 296 states to 0 states and 0 transitions. [2021-10-28 22:56:20,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:56:20,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:56:20,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:56:20,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:20,854 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:56:20,854 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:56:20,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:20,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:56:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:56:20,860 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:56:20,860 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 22:56:20,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:56:20,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 22:56:20,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:56:20,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 22:56:20,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:56:20,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:56:20,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:56:20,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:20,861 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:56:20,861 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:56:20,861 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:56:20,861 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:56:20,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:56:20,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:56:20,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 22:56:20,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:56:20 BoogieIcfgContainer [2021-10-28 22:56:20,867 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:56:20,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:56:20,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:56:20,868 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:56:20,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:15" (3/4) ... [2021-10-28 22:56:20,872 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:56:20,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:56:20,873 INFO L168 Benchmark]: Toolchain (without parser) took 6847.46 ms. Allocated memory was 96.5 MB in the beginning and 153.1 MB in the end (delta: 56.6 MB). Free memory was 59.7 MB in the beginning and 82.3 MB in the end (delta: -22.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:20,874 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 68.4 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:56:20,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.60 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 65.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:20,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.34 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 62.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:20,876 INFO L168 Benchmark]: Boogie Preprocessor took 74.24 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:20,880 INFO L168 Benchmark]: RCFGBuilder took 921.20 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 60.6 MB in the beginning and 97.3 MB in the end (delta: -36.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:20,882 INFO L168 Benchmark]: BuchiAutomizer took 5221.93 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 97.3 MB in the beginning and 82.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:20,885 INFO L168 Benchmark]: Witness Printer took 3.82 ms. Allocated memory is still 153.1 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:56:20,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 68.4 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 524.60 ms. Allocated memory is still 96.5 MB. Free memory was 59.5 MB in the beginning and 65.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.34 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 62.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.24 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 921.20 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 60.6 MB in the beginning and 97.3 MB in the end (delta: -36.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5221.93 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 97.3 MB in the beginning and 82.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.82 ms. Allocated memory is still 153.1 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 177 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 789 SDtfs, 360 SDslu, 1505 SDs, 0 SdLazy, 54 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital131 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 22:56:20,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2dbf65-c250-4c25-999b-03ae1e199ae4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...