./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a --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 a476129b1600ab93482417c4ebe15d373b743970a04c4bdd8ca1478cbccf2de7 --- 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-b5237d8 [2022-11-21 17:24:06,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:24:06,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:24:06,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:24:06,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:24:06,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:24:06,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:24:06,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:24:06,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:24:06,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:24:06,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:24:06,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:24:06,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:24:06,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:24:06,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:24:06,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:24:06,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:24:06,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:24:06,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:24:06,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:24:06,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:24:06,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:24:06,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:24:06,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:24:06,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:24:06,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:24:06,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:24:06,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:24:06,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:24:06,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:24:06,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:24:06,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:24:06,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:24:06,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:24:06,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:24:06,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:24:06,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:24:06,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:24:06,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:24:06,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:24:06,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:24:06,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 17:24:06,662 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:24:06,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:24:06,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:24:06,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:24:06,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:24:06,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:24:06,666 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:24:06,666 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 17:24:06,667 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 17:24:06,667 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 17:24:06,668 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 17:24:06,669 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 17:24:06,669 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 17:24:06,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:24:06,669 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:24:06,670 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:24:06,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:24:06,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:24:06,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:24:06,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 17:24:06,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 17:24:06,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 17:24:06,672 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:24:06,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:24:06,672 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 17:24:06,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:24:06,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 17:24:06,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:24:06,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:24:06,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:24:06,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:24:06,677 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 17:24:06,678 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_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a476129b1600ab93482417c4ebe15d373b743970a04c4bdd8ca1478cbccf2de7 [2022-11-21 17:24:06,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:24:07,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:24:07,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:24:07,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:24:07,029 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:24:07,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2022-11-21 17:24:10,219 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:24:10,579 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:24:10,580 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2022-11-21 17:24:10,604 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/data/a70afa917/1f605a81514e4905ae15afa81f8c4328/FLAGd3a1c7857 [2022-11-21 17:24:10,631 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/data/a70afa917/1f605a81514e4905ae15afa81f8c4328 [2022-11-21 17:24:10,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:24:10,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:24:10,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:24:10,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:24:10,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:24:10,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:24:10" (1/1) ... [2022-11-21 17:24:10,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783d4fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:10, skipping insertion in model container [2022-11-21 17:24:10,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:24:10" (1/1) ... [2022-11-21 17:24:10,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:24:10,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:24:11,026 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_5467f0f8-1c17-429b-9e2d-45f2c1360e20/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c[28307,28320] [2022-11-21 17:24:11,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:24:11,044 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:24:11,182 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_5467f0f8-1c17-429b-9e2d-45f2c1360e20/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c[28307,28320] [2022-11-21 17:24:11,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:24:11,206 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:24:11,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11 WrapperNode [2022-11-21 17:24:11,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:24:11,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:24:11,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:24:11,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:24:11,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,309 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 874 [2022-11-21 17:24:11,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:24:11,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:24:11,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:24:11,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:24:11,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:24:11,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:24:11,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:24:11,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:24:11,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (1/1) ... [2022-11-21 17:24:11,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:24:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:24:11,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:24:11,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 17:24:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:24:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:24:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:24:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:24:11,722 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:24:11,725 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:24:12,892 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:24:12,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:24:12,911 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:24:12,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:12 BoogieIcfgContainer [2022-11-21 17:24:12,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:24:12,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 17:24:12,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 17:24:12,936 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 17:24:12,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:24:12,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 05:24:10" (1/3) ... [2022-11-21 17:24:12,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72b71cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:24:12, skipping insertion in model container [2022-11-21 17:24:12,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:24:12,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:24:11" (2/3) ... [2022-11-21 17:24:12,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72b71cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:24:12, skipping insertion in model container [2022-11-21 17:24:12,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:24:12,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:24:12" (3/3) ... [2022-11-21 17:24:12,942 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2022-11-21 17:24:13,067 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 17:24:13,067 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 17:24:13,067 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 17:24:13,067 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 17:24:13,068 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 17:24:13,068 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 17:24:13,068 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 17:24:13,068 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 17:24:13,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 279 states, 278 states have (on average 1.830935251798561) internal successors, (509), 278 states have internal predecessors, (509), 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) [2022-11-21 17:24:13,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 83 [2022-11-21 17:24:13,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:24:13,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:24:13,124 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:13,124 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] [2022-11-21 17:24:13,125 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 17:24:13,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 279 states, 278 states have (on average 1.830935251798561) internal successors, (509), 278 states have internal predecessors, (509), 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) [2022-11-21 17:24:13,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 83 [2022-11-21 17:24:13,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:24:13,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:24:13,144 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:13,144 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] [2022-11-21 17:24:13,155 INFO L748 eck$LassoCheckResult]: Stem: 269#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(46, 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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 186#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~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~ret44#1, main_#t~ret45#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;~ep14~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep21~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep23~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep24~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~ep31~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~ep32~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~ep34~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~ep41~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~ep42~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~ep43~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~r1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~nl1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~m1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~max1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~mode1~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~id2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~r2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~nl2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~m2~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~max2~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~mode2~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~id3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~r3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~st3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~nl3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~m3~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~max3~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode3~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id4~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~r4~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~st4~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~nl4~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~m4~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~max4~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~mode4~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 157#L394true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 78#L405true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 113#L415true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 259#L426true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 181#L436true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 174#L447true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 160#L457true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 125#L468true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 143#L478true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 263#L489true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 45#L499true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 223#L510true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 187#L520true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 40#L531true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 76#L541true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 191#L552true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 222#L562true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 54#L573true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 92#L583true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 241#L594true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 194#L604true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 153#L615true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 133#L625true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 234#L636true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 230#L646true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 145#L657true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 182#L667true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 103#L678true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 100#L688true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 192#L699true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 118#L709true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 30#L720true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 55#L730true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 130#L741true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 21#L751true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 233#L762true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 4#L772true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 72#L783true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 188#L793true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 8#L804true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 85#L814true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 135#L825true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 131#L835true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 161#L846true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 142#L856true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 255#L867true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 16#L877true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 17#L888true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 86#L898true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 126#L898-1true init_#res#1 := init_~tmp___23~0#1; 270#L1067true main_#t~ret44#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret44#1;havoc main_#t~ret44#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; 44#L22true assume !(0 == assume_abort_if_not_~cond#1); 98#L21true 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;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 117#L1204-2true [2022-11-21 17:24:13,156 INFO L750 eck$LassoCheckResult]: Loop: 117#L1204-2true assume !false;assume { :begin_inline_node1 } true; 67#L110true assume !(0 != ~mode1~0 % 256); 101#L142true assume !(~r1~0 % 256 < 3); 70#L142-1true ~mode1~0 := 1; 43#L110-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 200#L163true assume !(0 != ~mode2~0 % 256); 108#L195true assume !(~r2~0 % 256 < 3); 53#L195-1true ~mode2~0 := 1; 50#L163-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 250#L216true assume !(0 != ~mode3~0 % 256); 144#L248true assume !(~r3~0 % 256 < 3); 219#L248-1true ~mode3~0 := 1; 27#L216-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true; 63#L269true assume !(0 != ~mode4~0 % 256); 88#L301true assume !(~r4~0 % 256 < 3); 99#L301-1true ~mode4~0 := 1; 138#L269-2true assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 115#L1075true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 278#L1075-1true check_#res#1 := check_~tmp~1#1; 111#L1127true main_#t~ret45#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret45#1;havoc main_#t~ret45#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; 41#L1246true assume !(0 == assert_~arg#1 % 256); 36#L1241true assume { :end_inline_assert } true; 117#L1204-2true [2022-11-21 17:24:13,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2022-11-21 17:24:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:13,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925301550] [2022-11-21 17:24:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:13,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:13,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:13,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:13,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925301550] [2022-11-21 17:24:13,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925301550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:13,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:13,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:24:13,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506615123] [2022-11-21 17:24:13,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:13,852 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 17:24:13,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash -85183375, now seen corresponding path program 1 times [2022-11-21 17:24:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:13,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159783362] [2022-11-21 17:24:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:13,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:14,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:14,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159783362] [2022-11-21 17:24:14,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159783362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:14,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:14,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:24:14,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404310851] [2022-11-21 17:24:14,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:14,038 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 17:24:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:14,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:24:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:24:14,087 INFO L87 Difference]: Start difference. First operand has 279 states, 278 states have (on average 1.830935251798561) internal successors, (509), 278 states have internal predecessors, (509), 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 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-21 17:24:14,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:14,229 INFO L93 Difference]: Finished difference Result 279 states and 505 transitions. [2022-11-21 17:24:14,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 505 transitions. [2022-11-21 17:24:14,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 82 [2022-11-21 17:24:14,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 274 states and 492 transitions. [2022-11-21 17:24:14,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 274 [2022-11-21 17:24:14,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 274 [2022-11-21 17:24:14,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 274 states and 492 transitions. [2022-11-21 17:24:14,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:24:14,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 274 states and 492 transitions. [2022-11-21 17:24:14,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states and 492 transitions. [2022-11-21 17:24:14,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2022-11-21 17:24:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 274 states have (on average 1.7956204379562044) internal successors, (492), 273 states have internal predecessors, (492), 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) [2022-11-21 17:24:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 492 transitions. [2022-11-21 17:24:14,366 INFO L240 hiAutomatonCegarLoop]: Abstraction has 274 states and 492 transitions. [2022-11-21 17:24:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:24:14,374 INFO L428 stractBuchiCegarLoop]: Abstraction has 274 states and 492 transitions. [2022-11-21 17:24:14,381 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 17:24:14,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 274 states and 492 transitions. [2022-11-21 17:24:14,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 82 [2022-11-21 17:24:14,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:24:14,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:24:14,387 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:14,393 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, 1] [2022-11-21 17:24:14,394 INFO L748 eck$LassoCheckResult]: Stem: 848#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(46, 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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 812#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~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~ret44#1, main_#t~ret45#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;~ep14~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep21~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep23~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep24~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~ep31~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~ep32~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~ep34~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~ep41~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~ep42~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~ep43~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~r1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~nl1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~m1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~max1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~mode1~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~id2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~r2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~nl2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~m2~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~max2~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~mode2~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~id3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~r3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~st3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~nl3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~m3~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~max3~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode3~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id4~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~r4~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~st4~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~nl4~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~m4~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~max4~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~mode4~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 798#L394 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 720#L405 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 721#L415 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 580#L426 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 807#L436 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 784#L447 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 800#L457 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 577#L468 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 771#L478 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 700#L489 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 670#L499 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 671#L510 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 813#L520 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 661#L531 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 662#L541 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 616#L552 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 818#L562 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 675#L573 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 682#L583 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 711#L594 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 820#L604 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 705#L615 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 779#L625 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 629#L636 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 840#L646 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 738#L657 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 789#L667 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 591#L678 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 744#L688 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 692#L699 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 763#L709 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 639#L720 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 640#L730 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 657#L741 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 622#L751 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 623#L762 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 582#L772 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 583#L783 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 714#L793 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 593#L804 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 594#L814 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 680#L825 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 778#L835 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 644#L846 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 786#L856 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 638#L867 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 608#L877 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 596#L888 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 610#L898 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 587#L898-1 init_#res#1 := init_~tmp___23~0#1; 772#L1067 main_#t~ret44#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret44#1;havoc main_#t~ret44#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; 668#L22 assume !(0 == assume_abort_if_not_~cond#1); 669#L21 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;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 652#L1204-2 [2022-11-21 17:24:14,394 INFO L750 eck$LassoCheckResult]: Loop: 652#L1204-2 assume !false;assume { :begin_inline_node1 } true; 702#L110 assume !(0 != ~mode1~0 % 256); 704#L142 assume !(~r1~0 % 256 < 3); 708#L142-1 ~mode1~0 := 1; 666#L110-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 667#L163 assume !(0 != ~mode2~0 % 256); 751#L195 assume !(~r2~0 % 256 < 3); 681#L195-1 ~mode2~0 := 1; 676#L163-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 677#L216 assume !(0 != ~mode3~0 % 256); 788#L248 assume !(~r3~0 % 256 < 3); 650#L248-1 ~mode3~0 := 1; 633#L216-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true; 634#L269 assume !(0 != ~mode4~0 % 256); 695#L301 assume !(~r4~0 % 256 < 3); 626#L301-1 ~mode4~0 := 1; 732#L269-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 756#L1075 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 757#L1076 assume ~st1~0 + ~nl1~0 <= 1; 785#L1077 assume ~st2~0 + ~nl2~0 <= 1; 678#L1078 assume ~st3~0 + ~nl3~0 <= 1; 597#L1079 assume ~st4~0 + ~nl4~0 <= 1; 598#L1080 assume ~r1~0 % 256 >= 3; 611#L1084 assume ~r1~0 % 256 < 3; 612#L1089 assume ~r1~0 % 256 >= 3; 830#L1094 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 713#L1075-1 check_#res#1 := check_~tmp~1#1; 754#L1127 main_#t~ret45#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret45#1;havoc main_#t~ret45#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; 663#L1246 assume !(0 == assert_~arg#1 % 256); 651#L1241 assume { :end_inline_assert } true; 652#L1204-2 [2022-11-21 17:24:14,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:14,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2022-11-21 17:24:14,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:14,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910414560] [2022-11-21 17:24:14,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:14,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:14,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:14,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910414560] [2022-11-21 17:24:14,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910414560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:14,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:14,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:24:14,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784609992] [2022-11-21 17:24:14,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:14,709 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 17:24:14,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:14,712 INFO L85 PathProgramCache]: Analyzing trace with hash -31942592, now seen corresponding path program 1 times [2022-11-21 17:24:14,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:14,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827285559] [2022-11-21 17:24:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:14,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:14,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:14,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827285559] [2022-11-21 17:24:14,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827285559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:14,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:14,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:24:14,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787332780] [2022-11-21 17:24:14,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:14,807 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 17:24:14,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:24:14,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:24:14,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:24:14,808 INFO L87 Difference]: Start difference. First operand 274 states and 492 transitions. cyclomatic complexity: 219 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-21 17:24:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:24:14,897 INFO L93 Difference]: Finished difference Result 341 states and 599 transitions. [2022-11-21 17:24:14,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 341 states and 599 transitions. [2022-11-21 17:24:14,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 149 [2022-11-21 17:24:14,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 341 states to 341 states and 599 transitions. [2022-11-21 17:24:14,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2022-11-21 17:24:14,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2022-11-21 17:24:14,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 599 transitions. [2022-11-21 17:24:14,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:24:14,916 INFO L218 hiAutomatonCegarLoop]: Abstraction has 341 states and 599 transitions. [2022-11-21 17:24:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 599 transitions. [2022-11-21 17:24:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-11-21 17:24:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 341 states have (on average 1.7565982404692082) internal successors, (599), 340 states have internal predecessors, (599), 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) [2022-11-21 17:24:14,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 599 transitions. [2022-11-21 17:24:14,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 341 states and 599 transitions. [2022-11-21 17:24:14,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:24:14,946 INFO L428 stractBuchiCegarLoop]: Abstraction has 341 states and 599 transitions. [2022-11-21 17:24:14,946 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 17:24:14,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 599 transitions. [2022-11-21 17:24:14,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 149 [2022-11-21 17:24:14,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:24:14,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:24:14,951 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:14,951 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, 1, 1, 1, 1, 1, 1] [2022-11-21 17:24:14,952 INFO L748 eck$LassoCheckResult]: Stem: 1486#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(46, 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;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 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;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 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;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 1445#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~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~ret44#1, main_#t~ret45#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;~ep14~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep21~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep23~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep24~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~ep31~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~ep32~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~ep34~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~ep41~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~ep42~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~ep43~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~r1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~nl1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~m1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~max1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~mode1~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~id2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~r2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~nl2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~m2~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~max2~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~mode2~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~id3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~r3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~st3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~nl3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~m3~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~max3~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode3~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id4~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~r4~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~st4~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~nl4~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~m4~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~max4~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~mode4~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 1426#L394 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1344#L405 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1345#L415 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1204#L426 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1439#L436 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1410#L447 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1428#L457 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1201#L468 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1397#L478 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1324#L489 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1294#L499 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1295#L510 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1449#L520 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1285#L531 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1286#L541 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1239#L552 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1451#L562 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1301#L573 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1306#L583 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1335#L594 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1453#L604 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1329#L615 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1405#L625 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1252#L636 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1475#L646 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1362#L657 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1416#L667 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1215#L678 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1371#L688 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1316#L699 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1389#L709 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1262#L720 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1263#L730 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1281#L741 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1245#L751 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1246#L762 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1206#L772 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1207#L783 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1338#L793 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1217#L804 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1218#L814 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1304#L825 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1404#L835 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1267#L846 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1412#L856 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1261#L867 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1232#L877 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1220#L888 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1234#L898 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1213#L898-1 init_#res#1 := init_~tmp___23~0#1; 1398#L1067 main_#t~ret44#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret44#1;havoc main_#t~ret44#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; 1292#L22 assume !(0 == assume_abort_if_not_~cond#1); 1293#L21 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;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 1369#L1204-2 [2022-11-21 17:24:14,952 INFO L750 eck$LassoCheckResult]: Loop: 1369#L1204-2 assume !false;assume { :begin_inline_node1 } true; 1490#L110 assume !(0 != ~mode1~0 % 256); 1489#L142 assume ~r1~0 % 256 < 3; 1478#L143 assume 0 != ~ep12~0 % 256;~p12_new~0 := (if (if ~max1~0 != ~nomsg~0 && ~p12_new~0 == ~nomsg~0 then ~max1~0 else ~p12_new~0) % 256 <= 127 then (if ~max1~0 != ~nomsg~0 && ~p12_new~0 == ~nomsg~0 then ~max1~0 else ~p12_new~0) % 256 else (if ~max1~0 != ~nomsg~0 && ~p12_new~0 == ~nomsg~0 then ~max1~0 else ~p12_new~0) % 256 - 256); 1223#L143-2 assume 0 != ~ep13~0 % 256;~p13_new~0 := (if (if ~max1~0 != ~nomsg~0 && ~p13_new~0 == ~nomsg~0 then ~max1~0 else ~p13_new~0) % 256 <= 127 then (if ~max1~0 != ~nomsg~0 && ~p13_new~0 == ~nomsg~0 then ~max1~0 else ~p13_new~0) % 256 else (if ~max1~0 != ~nomsg~0 && ~p13_new~0 == ~nomsg~0 then ~max1~0 else ~p13_new~0) % 256 - 256); 1224#L146-1 assume 0 != ~ep14~0 % 256;~p14_new~0 := (if (if ~max1~0 != ~nomsg~0 && ~p14_new~0 == ~nomsg~0 then ~max1~0 else ~p14_new~0) % 256 <= 127 then (if ~max1~0 != ~nomsg~0 && ~p14_new~0 == ~nomsg~0 then ~max1~0 else ~p14_new~0) % 256 else (if ~max1~0 != ~nomsg~0 && ~p14_new~0 == ~nomsg~0 then ~max1~0 else ~p14_new~0) % 256 - 256); 1332#L142-1 ~mode1~0 := 1; 1288#L110-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 1289#L163 assume !(0 != ~mode2~0 % 256); 1376#L195 assume !(~r2~0 % 256 < 3); 1305#L195-1 ~mode2~0 := 1; 1298#L163-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 1299#L216 assume !(0 != ~mode3~0 % 256); 1413#L248 assume !(~r3~0 % 256 < 3); 1274#L248-1 ~mode3~0 := 1; 1256#L216-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true; 1257#L269 assume !(0 != ~mode4~0 % 256); 1319#L301 assume !(~r4~0 % 256 < 3); 1249#L301-1 ~mode4~0 := 1; 1502#L269-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_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;~p24_old~0 := ~p24_new~0;~p24_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;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 1500#L1075 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1499#L1076 assume ~st1~0 + ~nl1~0 <= 1; 1498#L1077 assume ~st2~0 + ~nl2~0 <= 1; 1497#L1078 assume ~st3~0 + ~nl3~0 <= 1; 1496#L1079 assume ~st4~0 + ~nl4~0 <= 1; 1495#L1080 assume !(~r1~0 % 256 >= 3); 1431#L1083 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1432#L1084 assume ~r1~0 % 256 < 3; 1501#L1089 assume !(~r1~0 % 256 >= 3); 1470#L1093 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1471#L1094 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1494#L1075-1 check_#res#1 := check_~tmp~1#1; 1493#L1127 main_#t~ret45#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret45#1;havoc main_#t~ret45#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; 1492#L1246 assume !(0 == assert_~arg#1 % 256); 1491#L1241 assume { :end_inline_assert } true; 1369#L1204-2 [2022-11-21 17:24:14,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:14,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2022-11-21 17:24:14,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:14,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534321454] [2022-11-21 17:24:14,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:14,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:24:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:24:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:24:15,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534321454] [2022-11-21 17:24:15,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534321454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:24:15,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:24:15,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:24:15,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058765653] [2022-11-21 17:24:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:24:15,155 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 17:24:15,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:24:15,156 INFO L85 PathProgramCache]: Analyzing trace with hash 55504183, now seen corresponding path program 1 times [2022-11-21 17:24:15,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:24:15,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466227091] [2022-11-21 17:24:15,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:24:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:24:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:24:15,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:24:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:24:15,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:24:20,136 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:24:20,137 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:24:20,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:24:20,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:24:20,138 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:24:20,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:24:20,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:24:20,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:24:20,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c_Iteration3_Loop [2022-11-21 17:24:20,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:24:20,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:24:20,194 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,205 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,212 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,252 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:20,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,535 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:21,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:24:23,186 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2022-11-21 17:24:27,412 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 81864 conjuctions. This might take some time... [2022-11-21 17:27:58,412 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 4336 conjuctions. [2022-11-21 17:37:04,441 WARN L233 SmtUtils]: Spent 9.09m on a formula simplification. DAG size of input: 2432 DAG size of output: 350 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2022-11-21 17:37:04,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:37:04,710 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:37:04,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:37:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:37:04,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:37:04,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:37:04,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:37:04,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 17:37:04,778 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:37:04,778 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret45#1=0} Honda state: {ULTIMATE.start_main_#t~ret45#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:37:04,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:37:04,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:37:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:37:04,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:37:04,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:37:04,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:37:04,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 17:37:04,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:37:04,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:37:04,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:37:04,841 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:37:04,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:37:04,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:37:04,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 17:37:05,027 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:37:05,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5467f0f8-1c17-429b-9e2d-45f2c1360e20/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:37:05,036 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:37:05,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:37:05,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:37:05,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:37:05,037 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:37:05,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:37:05,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:37:05,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:37:05,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c_Iteration3_Loop [2022-11-21 17:37:05,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:37:05,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:37:05,051 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:05,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:05,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:05,085 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:05,088 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,162 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:06,194 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:37:07,756 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2022-11-21 17:37:10,092 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 76074 conjuctions. This might take some time...