./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN --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 cf92f342b2da275c63d151f2d4ed52683d7003506826ae2897efde5e3c66195f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:31:42,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:31:42,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:31:42,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:31:42,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:31:42,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:31:42,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:31:42,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:31:42,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:31:42,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:31:42,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:31:42,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:31:42,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:31:42,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:31:42,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:31:42,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:31:42,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:31:42,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:31:42,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:31:43,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:31:43,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:31:43,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:31:43,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:31:43,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:31:43,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:31:43,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:31:43,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:31:43,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:31:43,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:31:43,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:31:43,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:31:43,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:31:43,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:31:43,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:31:43,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:31:43,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:31:43,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:31:43,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:31:43,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:31:43,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:31:43,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:31:43,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 09:31:43,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:31:43,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:31:43,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:31:43,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:31:43,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:31:43,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:31:43,073 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:31:43,074 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 09:31:43,074 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 09:31:43,074 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 09:31:43,075 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 09:31:43,076 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 09:31:43,076 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 09:31:43,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:31:43,077 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:31:43,077 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:31:43,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:31:43,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:31:43,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:31:43,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 09:31:43,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 09:31:43,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 09:31:43,079 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:31:43,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:31:43,080 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 09:31:43,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:31:43,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 09:31:43,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:31:43,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:31:43,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:31:43,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:31:43,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 09:31:43,084 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_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf92f342b2da275c63d151f2d4ed52683d7003506826ae2897efde5e3c66195f [2022-11-20 09:31:43,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:31:43,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:31:43,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:31:43,396 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:31:43,396 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:31:43,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-20 09:31:46,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:31:46,745 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:31:46,746 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-20 09:31:46,756 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/data/1f899f3db/fa96c6792906422192775deff3388b8c/FLAGdd84c7e9a [2022-11-20 09:31:46,769 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/data/1f899f3db/fa96c6792906422192775deff3388b8c [2022-11-20 09:31:46,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:31:46,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:31:46,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:46,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:31:46,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:31:46,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:46" (1/1) ... [2022-11-20 09:31:46,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d95a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:46, skipping insertion in model container [2022-11-20 09:31:46,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:46" (1/1) ... [2022-11-20 09:31:46,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:31:46,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:31:47,060 WARN L237 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_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c[14373,14386] [2022-11-20 09:31:47,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:47,075 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:31:47,171 WARN L237 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_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c[14373,14386] [2022-11-20 09:31:47,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:47,187 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:31:47,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47 WrapperNode [2022-11-20 09:31:47,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:47,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:47,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:31:47,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:31:47,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,242 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 435 [2022-11-20 09:31:47,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:47,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:31:47,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:31:47,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:31:47,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:31:47,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:31:47,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:31:47,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:31:47,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (1/1) ... [2022-11-20 09:31:47,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:47,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:47,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 09:31:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:31:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:31:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:31:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:31:47,480 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:31:47,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:31:48,140 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:31:48,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:31:48,148 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:31:48,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:48 BoogieIcfgContainer [2022-11-20 09:31:48,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:31:48,157 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 09:31:48,157 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 09:31:48,161 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 09:31:48,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:31:48,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:31:46" (1/3) ... [2022-11-20 09:31:48,162 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a2f19f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:31:48, skipping insertion in model container [2022-11-20 09:31:48,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:31:48,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:47" (2/3) ... [2022-11-20 09:31:48,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a2f19f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:31:48, skipping insertion in model container [2022-11-20 09:31:48,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:31:48,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:48" (3/3) ... [2022-11-20 09:31:48,165 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-20 09:31:48,246 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 09:31:48,247 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 09:31:48,247 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 09:31:48,247 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 09:31:48,247 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 09:31:48,247 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 09:31:48,248 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 09:31:48,248 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 09:31:48,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.7751937984496124) internal successors, (229), 129 states have internal predecessors, (229), 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) [2022-11-20 09:31:48,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2022-11-20 09:31:48,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:48,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:48,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:48,288 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:48,288 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 09:31:48,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.7751937984496124) internal successors, (229), 129 states have internal predecessors, (229), 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) [2022-11-20 09:31:48,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2022-11-20 09:31:48,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:48,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:48,297 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:48,297 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:48,306 INFO L748 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~ret34#1, main_#t~ret35#1, main_#t~post36#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 30#L258true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 68#L261-1true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 32#L271true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 70#L274-1true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 52#L284true assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 122#L287-1true init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 33#L297true assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 41#L300-1true init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 61#L310true assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 113#L313-1true init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 3#L323true assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 20#L326-1true init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 69#L336true assume !(~id1~0 != ~id2~0);init_~tmp___5~0#1 := 0; 5#L336-1true init_#res#1 := init_~tmp___5~0#1; 14#L457true main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 87#L21true assume !(0 == assume_abort_if_not_~cond#1); 13#L20true assume { :end_inline_assume_abort_if_not } true;~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#1 := 0; 31#L568-2true [2022-11-20 09:31:48,307 INFO L750 eck$LassoCheckResult]: Loop: 31#L568-2true assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 82#L82true assume !(0 != ~mode1~0 % 256); 58#L110true assume !(~r1~0 < 2); 16#L110-1true ~mode1~0 := 1; 121#L82-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 101#L133true assume !(0 != ~mode2~0 % 256); 8#L161true assume !(~r2~0 < 2); 60#L161-1true ~mode2~0 := 1; 22#L133-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 73#L184true assume !(0 != ~mode3~0 % 256); 62#L212true assume !(~r3~0 < 2); 90#L212-1true ~mode3~0 := 1; 72#L184-2true assume { :end_inline_node3 } true;~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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 125#L465true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 120#L465-1true check_#res#1 := check_~tmp~1#1; 88#L513true main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 107#L598true assume !(0 == assert_~arg#1 % 256); 67#L593true assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 31#L568-2true [2022-11-20 09:31:48,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 1 times [2022-11-20 09:31:48,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:48,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946524209] [2022-11-20 09:31:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:48,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:48,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:48,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946524209] [2022-11-20 09:31:48,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946524209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:48,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:48,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:48,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155104942] [2022-11-20 09:31:48,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:48,748 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 09:31:48,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1547057202, now seen corresponding path program 1 times [2022-11-20 09:31:48,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:48,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387112477] [2022-11-20 09:31:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:48,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:49,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:49,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387112477] [2022-11-20 09:31:49,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387112477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:49,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:49,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060920641] [2022-11-20 09:31:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:49,037 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 09:31:49,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:49,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:49,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:49,083 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.7751937984496124) internal successors, (229), 129 states have internal predecessors, (229), 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) [2022-11-20 09:31:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:49,210 INFO L93 Difference]: Finished difference Result 134 states and 229 transitions. [2022-11-20 09:31:49,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 229 transitions. [2022-11-20 09:31:49,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-20 09:31:49,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 213 transitions. [2022-11-20 09:31:49,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-11-20 09:31:49,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2022-11-20 09:31:49,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 213 transitions. [2022-11-20 09:31:49,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:49,224 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 213 transitions. [2022-11-20 09:31:49,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 213 transitions. [2022-11-20 09:31:49,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-20 09:31:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.704) internal successors, (213), 124 states have internal predecessors, (213), 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) [2022-11-20 09:31:49,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 213 transitions. [2022-11-20 09:31:49,266 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 213 transitions. [2022-11-20 09:31:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:49,277 INFO L428 stractBuchiCegarLoop]: Abstraction has 125 states and 213 transitions. [2022-11-20 09:31:49,277 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 09:31:49,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 213 transitions. [2022-11-20 09:31:49,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-20 09:31:49,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:49,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:49,281 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:49,281 INFO L149 hiAutomatonCegarLoop]: 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] [2022-11-20 09:31:49,281 INFO L748 eck$LassoCheckResult]: Stem: 400#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 351#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~ret34#1, main_#t~ret35#1, main_#t~post36#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 335#L258 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 336#L261-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 339#L271 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 340#L274-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 366#L284 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 326#L287-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 342#L297 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 343#L300-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 355#L310 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 319#L313-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 282#L323 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 284#L326-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 316#L336 assume !(~id1~0 != ~id2~0);init_~tmp___5~0#1 := 0; 287#L336-1 init_#res#1 := init_~tmp___5~0#1; 288#L457 main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 309#L21 assume !(0 == assume_abort_if_not_~cond#1); 305#L20 assume { :end_inline_assume_abort_if_not } true;~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#1 := 0; 306#L568-2 [2022-11-20 09:31:49,281 INFO L750 eck$LassoCheckResult]: Loop: 306#L568-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 338#L82 assume !(0 != ~mode1~0 % 256); 372#L110 assume !(~r1~0 < 2); 290#L110-1 ~mode1~0 := 1; 310#L82-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 395#L133 assume !(0 != ~mode2~0 % 256); 293#L161 assume !(~r2~0 < 2); 286#L161-1 ~mode2~0 := 1; 320#L133-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 321#L184 assume !(0 != ~mode3~0 % 256); 375#L212 assume !(~r3~0 < 2); 376#L212-1 ~mode3~0 := 1; 381#L184-2 assume { :end_inline_node3 } true;~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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 382#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 405#L466 assume ~st1~0 + ~nl1~0 <= 1; 406#L467 assume ~st2~0 + ~nl2~0 <= 1; 401#L468 assume ~st3~0 + ~nl3~0 <= 1; 295#L469 assume ~r1~0 >= 2; 296#L473 assume ~r1~0 < 2; 331#L478 assume ~r1~0 >= 2; 365#L483 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 304#L465-1 check_#res#1 := check_~tmp~1#1; 391#L513 main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 392#L598 assume !(0 == assert_~arg#1 % 256); 380#L593 assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 306#L568-2 [2022-11-20 09:31:49,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:49,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 2 times [2022-11-20 09:31:49,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:49,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32808521] [2022-11-20 09:31:49,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:49,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:49,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:49,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32808521] [2022-11-20 09:31:49,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32808521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:49,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:49,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:49,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219909658] [2022-11-20 09:31:49,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:49,387 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 09:31:49,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:49,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1448741232, now seen corresponding path program 1 times [2022-11-20 09:31:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:49,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793712912] [2022-11-20 09:31:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:49,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:49,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:49,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793712912] [2022-11-20 09:31:49,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793712912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:49,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:49,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:49,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955474170] [2022-11-20 09:31:49,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:49,463 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 09:31:49,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:49,464 INFO L87 Difference]: Start difference. First operand 125 states and 213 transitions. cyclomatic complexity: 89 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) [2022-11-20 09:31:49,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:49,564 INFO L93 Difference]: Finished difference Result 128 states and 215 transitions. [2022-11-20 09:31:49,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 215 transitions. [2022-11-20 09:31:49,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-20 09:31:49,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 125 states and 183 transitions. [2022-11-20 09:31:49,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-11-20 09:31:49,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2022-11-20 09:31:49,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 183 transitions. [2022-11-20 09:31:49,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:49,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-20 09:31:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 183 transitions. [2022-11-20 09:31:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-20 09:31:49,587 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) [2022-11-20 09:31:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2022-11-20 09:31:49,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-20 09:31:49,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:49,594 INFO L428 stractBuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-20 09:31:49,594 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 09:31:49,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2022-11-20 09:31:49,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-20 09:31:49,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:49,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:49,598 INFO L148 hiAutomatonCegarLoop]: 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, 1, 1, 1] [2022-11-20 09:31:49,598 INFO L149 hiAutomatonCegarLoop]: 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] [2022-11-20 09:31:49,598 INFO L748 eck$LassoCheckResult]: Stem: 666#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 617#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~ret34#1, main_#t~ret35#1, main_#t~post36#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 601#L258 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 602#L261-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 605#L271 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 606#L274-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 632#L284 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 595#L287-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 608#L297 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 609#L300-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 621#L310 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 585#L313-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 548#L323 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 550#L326-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 582#L336 assume ~id1~0 != ~id2~0; 645#L337 assume ~id1~0 != ~id3~0; 622#L338 assume ~id2~0 != ~id3~0; 623#L339 assume ~id1~0 >= 0; 659#L340 assume ~id2~0 >= 0; 654#L341 assume ~id3~0 >= 0; 613#L342 assume 0 == ~r1~0; 614#L343 assume 0 == ~r2~0; 598#L344 assume 0 == ~r3~0; 599#L345 assume 0 != init_~r122~0#1 % 256; 618#L346 assume 0 != init_~r132~0#1 % 256; 619#L347 assume 0 != init_~r212~0#1 % 256; 663#L348 assume 0 != init_~r232~0#1 % 256; 649#L349 assume 0 != init_~r312~0#1 % 256; 650#L350 assume 0 != init_~r322~0#1 % 256; 638#L351 assume ~max1~0 == ~id1~0; 639#L352 assume ~max2~0 == ~id2~0; 656#L353 assume ~max3~0 == ~id3~0; 628#L354 assume 0 == ~st1~0; 615#L355 assume 0 == ~st2~0; 616#L356 assume 0 == ~st3~0; 627#L357 assume 0 == ~nl1~0; 564#L358 assume 0 == ~nl2~0; 565#L359 assume 0 == ~nl3~0; 573#L360 assume 0 == ~mode1~0 % 256; 574#L361 assume 0 == ~mode2~0 % 256; 644#L362 assume 0 == ~mode3~0 % 256; 669#L363 assume 0 != ~newmax1~0 % 256; 670#L364 assume 0 != ~newmax2~0 % 256; 624#L365 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0#1 := 1; 553#L336-1 init_#res#1 := init_~tmp___5~0#1; 554#L457 main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 575#L21 assume !(0 == assume_abort_if_not_~cond#1); 571#L20 assume { :end_inline_assume_abort_if_not } true;~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#1 := 0; 572#L568-2 [2022-11-20 09:31:49,598 INFO L750 eck$LassoCheckResult]: Loop: 572#L568-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 604#L82 assume !(0 != ~mode1~0 % 256); 640#L110 assume !(~r1~0 < 2); 556#L110-1 ~mode1~0 := 1; 576#L82-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 661#L133 assume !(0 != ~mode2~0 % 256); 559#L161 assume !(~r2~0 < 2); 552#L161-1 ~mode2~0 := 1; 586#L133-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 587#L184 assume !(0 != ~mode3~0 % 256); 641#L212 assume !(~r3~0 < 2); 642#L212-1 ~mode3~0 := 1; 647#L184-2 assume { :end_inline_node3 } true;~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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 648#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 671#L466 assume ~st1~0 + ~nl1~0 <= 1; 672#L467 assume ~st2~0 + ~nl2~0 <= 1; 667#L468 assume ~st3~0 + ~nl3~0 <= 1; 561#L469 assume ~r1~0 >= 2; 562#L473 assume ~r1~0 < 2; 597#L478 assume ~r1~0 >= 2; 631#L483 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 570#L465-1 check_#res#1 := check_~tmp~1#1; 657#L513 main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 658#L598 assume !(0 == assert_~arg#1 % 256); 646#L593 assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 572#L568-2 [2022-11-20 09:31:49,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:49,599 INFO L85 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 1 times [2022-11-20 09:31:49,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:49,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935842026] [2022-11-20 09:31:49,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:49,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:49,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:49,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:49,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1448741232, now seen corresponding path program 2 times [2022-11-20 09:31:49,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:49,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983392630] [2022-11-20 09:31:49,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:49,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:49,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:49,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983392630] [2022-11-20 09:31:49,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983392630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:49,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:49,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:49,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887517388] [2022-11-20 09:31:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:49,838 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 09:31:49,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:49,840 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) [2022-11-20 09:31:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:49,918 INFO L93 Difference]: Finished difference Result 174 states and 257 transitions. [2022-11-20 09:31:49,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 257 transitions. [2022-11-20 09:31:49,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2022-11-20 09:31:49,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 174 states and 257 transitions. [2022-11-20 09:31:49,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-11-20 09:31:49,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-11-20 09:31:49,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 257 transitions. [2022-11-20 09:31:49,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:49,930 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-20 09:31:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 257 transitions. [2022-11-20 09:31:49,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-20 09:31:49,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.4770114942528736) internal successors, (257), 173 states have internal predecessors, (257), 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) [2022-11-20 09:31:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2022-11-20 09:31:49,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-20 09:31:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:49,941 INFO L428 stractBuchiCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-20 09:31:49,942 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 09:31:49,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 257 transitions. [2022-11-20 09:31:49,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2022-11-20 09:31:49,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:49,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:49,946 INFO L148 hiAutomatonCegarLoop]: 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, 1, 1, 1] [2022-11-20 09:31:49,947 INFO L149 hiAutomatonCegarLoop]: 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] [2022-11-20 09:31:49,947 INFO L748 eck$LassoCheckResult]: Stem: 976#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(43, 2);call #Ultimate.allocInit(12, 3);~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;~newmax1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~newmax2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~newmax3~0 := 0; 923#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~ret34#1, main_#t~ret35#1, main_#t~post36#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 905#L258 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 906#L261-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 909#L271 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 910#L274-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 938#L284 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 899#L287-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 912#L297 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 913#L300-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 927#L310 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 889#L313-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 853#L323 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 855#L326-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 886#L336 assume ~id1~0 != ~id2~0; 952#L337 assume ~id1~0 != ~id3~0; 928#L338 assume ~id2~0 != ~id3~0; 929#L339 assume ~id1~0 >= 0; 969#L340 assume ~id2~0 >= 0; 961#L341 assume ~id3~0 >= 0; 919#L342 assume 0 == ~r1~0; 920#L343 assume 0 == ~r2~0; 902#L344 assume 0 == ~r3~0; 903#L345 assume 0 != init_~r122~0#1 % 256; 924#L346 assume 0 != init_~r132~0#1 % 256; 925#L347 assume 0 != init_~r212~0#1 % 256; 973#L348 assume 0 != init_~r232~0#1 % 256; 956#L349 assume 0 != init_~r312~0#1 % 256; 957#L350 assume 0 != init_~r322~0#1 % 256; 946#L351 assume ~max1~0 == ~id1~0; 947#L352 assume ~max2~0 == ~id2~0; 964#L353 assume ~max3~0 == ~id3~0; 934#L354 assume 0 == ~st1~0; 921#L355 assume 0 == ~st2~0; 922#L356 assume 0 == ~st3~0; 933#L357 assume 0 == ~nl1~0; 871#L358 assume 0 == ~nl2~0; 872#L359 assume 0 == ~nl3~0; 877#L360 assume 0 == ~mode1~0 % 256; 878#L361 assume 0 == ~mode2~0 % 256; 951#L362 assume 0 == ~mode3~0 % 256; 979#L363 assume 0 != ~newmax1~0 % 256; 981#L364 assume 0 != ~newmax2~0 % 256; 930#L365 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0#1 := 1; 858#L336-1 init_#res#1 := init_~tmp___5~0#1; 859#L457 main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 879#L21 assume !(0 == assume_abort_if_not_~cond#1); 875#L20 assume { :end_inline_assume_abort_if_not } true;~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#1 := 0; 876#L568-2 [2022-11-20 09:31:49,947 INFO L750 eck$LassoCheckResult]: Loop: 876#L568-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 908#L82 assume !(0 != ~mode1~0 % 256); 962#L110 assume ~r1~0 < 2; 882#L111 assume !(0 != ~ep12~0 % 256); 884#L111-1 assume !(0 != ~ep13~0 % 256); 861#L110-1 ~mode1~0 := 1; 880#L82-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 971#L133 assume !(0 != ~mode2~0 % 256); 864#L161 assume !(~r2~0 < 2); 857#L161-1 ~mode2~0 := 1; 890#L133-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 891#L184 assume !(0 != ~mode3~0 % 256); 948#L212 assume !(~r3~0 < 2); 949#L212-1 ~mode3~0 := 1; 967#L184-2 assume { :end_inline_node3 } true;~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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 988#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 987#L466 assume ~st1~0 + ~nl1~0 <= 1; 986#L467 assume ~st2~0 + ~nl2~0 <= 1; 985#L468 assume ~st3~0 + ~nl3~0 <= 1; 984#L469 assume !(~r1~0 >= 2); 917#L472 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 918#L473 assume ~r1~0 < 2; 1002#L478 assume !(~r1~0 >= 2); 936#L482 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 937#L483 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 980#L465-1 check_#res#1 := check_~tmp~1#1; 965#L513 main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 966#L598 assume !(0 == assert_~arg#1 % 256); 953#L593 assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 876#L568-2 [2022-11-20 09:31:49,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 2 times [2022-11-20 09:31:49,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:49,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897909067] [2022-11-20 09:31:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:49,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:50,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:50,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:50,041 INFO L85 PathProgramCache]: Analyzing trace with hash 18424674, now seen corresponding path program 1 times [2022-11-20 09:31:50,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:50,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019923231] [2022-11-20 09:31:50,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:50,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:50,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:50,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:50,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:50,089 INFO L85 PathProgramCache]: Analyzing trace with hash 135841333, now seen corresponding path program 1 times [2022-11-20 09:31:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:50,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104563633] [2022-11-20 09:31:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:50,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:50,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:50,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104563633] [2022-11-20 09:31:50,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104563633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:50,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:50,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:50,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712216733] [2022-11-20 09:31:50,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:51,018 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:31:51,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:31:51,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:31:51,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:31:51,019 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:31:51,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:51,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:31:51,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:31:51,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-20 09:31:51,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:31:51,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:31:51,077 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,094 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,103 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,122 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,157 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,678 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:31:51,684 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:31:51,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:51,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:51,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:31:51,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:31:51,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 09:31:51,729 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:31:51,729 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:31:51,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:51,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:51,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:51,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:51,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:31:51,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:31:51,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 09:31:51,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:51,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:51,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:51,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:51,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:31:51,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:31:51,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 09:31:51,932 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:31:51,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:51,940 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:31:51,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:31:51,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:31:51,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:31:51,940 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:31:51,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:51,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:31:51,940 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:31:51,940 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-20 09:31:51,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:31:51,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:31:51,944 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,954 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,957 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,968 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,970 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:51,999 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,005 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,029 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,036 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,041 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,050 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:52,524 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:31:52,528 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:31:52,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,549 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 [2022-11-20 09:31:52,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 09:31:52,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,593 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,600 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 [2022-11-20 09:31:52,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 09:31:52,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,636 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 [2022-11-20 09:31:52,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 09:31:52,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,688 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 [2022-11-20 09:31:52,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 09:31:52,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,712 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,722 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 09:31:52,727 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 [2022-11-20 09:31:52,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-20 09:31:52,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,753 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 09:31:52,756 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 [2022-11-20 09:31:52,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,797 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 09:31:52,813 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 [2022-11-20 09:31:52,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,837 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 09:31:52,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:52,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:52,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,857 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 09:31:52,873 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 [2022-11-20 09:31:52,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:52,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:52,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:52,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:52,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:52,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:52,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:52,903 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:31:52,929 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 09:31:52,929 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 09:31:52,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:52,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:52,959 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:52,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 09:31:52,967 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:31:52,967 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:31:52,967 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:31:52,968 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 11 Supporting invariants [] [2022-11-20 09:31:52,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:52,972 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:31:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:53,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-20 09:31:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:53,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:31:53,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:53,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:53,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:53,422 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:31:53,423 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 174 states and 257 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-11-20 09:31:53,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 174 states and 257 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 287 states and 436 transitions. Complement of second has 4 states. [2022-11-20 09:31:53,504 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 [2022-11-20 09:31:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-11-20 09:31:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-11-20 09:31:53,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 48 letters. Loop has 29 letters. [2022-11-20 09:31:53,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:31:53,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 77 letters. Loop has 29 letters. [2022-11-20 09:31:53,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:31:53,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 48 letters. Loop has 58 letters. [2022-11-20 09:31:53,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:31:53,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 436 transitions. [2022-11-20 09:31:53,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:31:53,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 0 states and 0 transitions. [2022-11-20 09:31:53,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 09:31:53,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 09:31:53,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 09:31:53,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:53,522 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:31:53,522 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:31:53,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:53,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:53,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:53,526 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-11-20 09:31:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:53,526 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-20 09:31:53,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-20 09:31:53,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:31:53,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 09:31:53,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 09:31:53,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 09:31:53,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 09:31:53,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:53,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:31:53,528 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:31:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:31:53,531 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:31:53,531 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 09:31:53,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:31:53,531 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:31:53,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 09:31:53,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:31:53 BoogieIcfgContainer [2022-11-20 09:31:53,543 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 09:31:53,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:31:53,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:31:53,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:31:53,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:48" (3/4) ... [2022-11-20 09:31:53,548 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:31:53,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:31:53,549 INFO L158 Benchmark]: Toolchain (without parser) took 6776.08ms. Allocated memory was 195.0MB in the beginning and 241.2MB in the end (delta: 46.1MB). Free memory was 161.2MB in the beginning and 169.3MB in the end (delta: -8.1MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:53,550 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:31:53,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.05ms. Allocated memory is still 195.0MB. Free memory was 160.5MB in the beginning and 143.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 09:31:53,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.54ms. Allocated memory is still 195.0MB. Free memory was 143.7MB in the beginning and 141.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:53,556 INFO L158 Benchmark]: Boogie Preprocessor took 39.15ms. Allocated memory is still 195.0MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:53,556 INFO L158 Benchmark]: RCFGBuilder took 872.49ms. Allocated memory is still 195.0MB. Free memory was 138.2MB in the beginning and 108.1MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-20 09:31:53,557 INFO L158 Benchmark]: BuchiAutomizer took 5386.71ms. Allocated memory was 195.0MB in the beginning and 241.2MB in the end (delta: 46.1MB). Free memory was 108.1MB in the beginning and 169.3MB in the end (delta: -61.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:31:53,557 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 241.2MB. Free memory is still 169.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:31:53,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.05ms. Allocated memory is still 195.0MB. Free memory was 160.5MB in the beginning and 143.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.54ms. Allocated memory is still 195.0MB. Free memory was 143.7MB in the beginning and 141.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.15ms. Allocated memory is still 195.0MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 872.49ms. Allocated memory is still 195.0MB. Free memory was 138.2MB in the beginning and 108.1MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5386.71ms. Allocated memory was 195.0MB in the beginning and 241.2MB in the end (delta: 46.1MB). Free memory was 108.1MB in the beginning and 169.3MB in the end (delta: -61.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 241.2MB. Free memory is still 169.3MB. There was no memory consumed. Max. memory is 16.1GB. * 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 5.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. 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 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 353 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 2323 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1527 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 796 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax100 hnf100 lsp26 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 09:31:53,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac9e676-7bc6-4068-bcf4-bcfeccda7107/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE