./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC --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 ea9d63d9dce85dc66cca4d104a4a8b31197b177b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:25:56,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:56,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:56,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:56,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:56,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:56,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:56,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:56,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:56,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:56,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:56,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:56,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:56,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:56,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:56,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:56,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:56,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:56,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:56,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:56,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:56,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:56,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:56,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:56,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:56,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:56,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:56,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:56,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:56,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:56,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:56,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:56,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:56,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:56,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:56,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:56,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:56,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:56,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:56,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:56,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:56,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:25:56,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:56,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:56,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:56,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:56,649 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:56,649 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:25:56,649 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:25:56,649 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:25:56,649 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:25:56,650 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:25:56,650 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:25:56,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:56,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:25:56,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:25:56,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:56,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:25:56,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:56,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:25:56,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:25:56,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:25:56,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:25:56,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:56,652 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:25:56,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:56,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:25:56,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:56,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:56,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:56,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:56,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:56,654 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:25:56,655 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_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9d63d9dce85dc66cca4d104a4a8b31197b177b [2021-10-11 00:25:56,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:56,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:56,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:56,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:56,926 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:56,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c [2021-10-11 00:25:57,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/data/988f7823b/9d69648d21f545cc9c4ad5d81b843ec1/FLAG11124fb31 [2021-10-11 00:25:57,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:57,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c [2021-10-11 00:25:57,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/data/988f7823b/9d69648d21f545cc9c4ad5d81b843ec1/FLAG11124fb31 [2021-10-11 00:25:57,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/data/988f7823b/9d69648d21f545cc9c4ad5d81b843ec1 [2021-10-11 00:25:57,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:57,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:57,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:57,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:57,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:57,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:57" (1/1) ... [2021-10-11 00:25:57,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e228bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:57, skipping insertion in model container [2021-10-11 00:25:57,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:57" (1/1) ... [2021-10-11 00:25:57,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:57,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:58,189 WARN L226 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_11cf9ebe-a2c1-44cd-a81f-636840bea147/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c[28192,28205] [2021-10-11 00:25:58,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:58,203 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:58,351 WARN L226 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_11cf9ebe-a2c1-44cd-a81f-636840bea147/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.ufo.BOUNDED-8.pals.c[28192,28205] [2021-10-11 00:25:58,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:58,377 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:58,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58 WrapperNode [2021-10-11 00:25:58,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:58,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:58,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:58,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:58,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:58,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:58,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:58,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:58,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... [2021-10-11 00:25:58,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:58,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:58,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:58,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:58,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:25:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:25:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:26:00,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:26:00,025 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-11 00:26:00,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:00 BoogieIcfgContainer [2021-10-11 00:26:00,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:26:00,031 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:26:00,031 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:26:00,034 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:26:00,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:26:00,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:25:57" (1/3) ... [2021-10-11 00:26:00,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55235f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:26:00, skipping insertion in model container [2021-10-11 00:26:00,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:26:00,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:58" (2/3) ... [2021-10-11 00:26:00,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55235f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:26:00, skipping insertion in model container [2021-10-11 00:26:00,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:26:00,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:00" (3/3) ... [2021-10-11 00:26:00,040 INFO L389 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c [2021-10-11 00:26:00,100 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:26:00,101 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:26:00,101 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:26:00,102 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:26:00,102 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:26:00,102 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:26:00,102 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:26:00,102 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:26:00,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states. [2021-10-11 00:26:00,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 107 [2021-10-11 00:26:00,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:26:00,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:26:00,188 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:00,188 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:00,188 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:26:00,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states. [2021-10-11 00:26:00,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 107 [2021-10-11 00:26:00,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:26:00,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:26:00,208 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:00,209 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:00,218 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~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; 10#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 275#L393true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 273#L404true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 180#L414true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 178#L425true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 88#L435true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 85#L446true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 143#L456true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 142#L467true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 50#L477true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 48#L488true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 260#L498true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 259#L509true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 172#L519true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 171#L530true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 225#L540true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 223#L551true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 134#L561true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 133#L572true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 35#L582true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 34#L593true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 242#L603true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 241#L614true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 304#L624true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 303#L635true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 207#L645true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 206#L656true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 118#L666true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 117#L677true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 21#L687true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 20#L698true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 59#L708true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 77#L719true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 269#L729true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 266#L740true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 175#L750true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 174#L761true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 81#L771true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 80#L782true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 138#L792true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 137#L803true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 40#L813true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 39#L824true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 252#L834true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 251#L845true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 163#L855true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 162#L866true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 216#L876true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 215#L887true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 127#L897true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 129#L897-1true init_#res := init_~tmp___23~0; 68#L1066true main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 11#L21true assume !(0 == assume_abort_if_not_~cond); 43#L20true ~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 := 0; 239#L1203-2true [2021-10-11 00:26:00,219 INFO L796 eck$LassoCheckResult]: Loop: 239#L1203-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 16#L109true assume !(0 != ~mode1~0 % 256); 73#L141true assume !(~r1~0 < 3); 69#L141-1true ~mode1~0 := 1; 12#L109-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 281#L162true assume !(0 != ~mode2~0 % 256); 188#L194true assume !(~r2~0 < 3); 186#L194-1true ~mode2~0 := 1; 277#L162-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 96#L215true assume !(0 != ~mode3~0 % 256); 148#L247true assume !(~r3~0 < 3); 145#L247-1true ~mode3~0 := 1; 87#L215-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 52#L268true assume !(0 != ~mode4~0 % 256); 262#L300true assume !(~r4~0 < 3); 258#L300-1true ~mode4~0 := 1; 45#L268-2true ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 224#L1074true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 226#L1074-1true check_#res := check_~tmp~1; 243#L1126true main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 299#L1246true assume !(0 == assert_~arg % 256); 268#L1241true main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 239#L1203-2true [2021-10-11 00:26:00,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2021-10-11 00:26:00,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:00,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742734847] [2021-10-11 00:26:00,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:00,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:00,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742734847] [2021-10-11 00:26:00,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:00,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:00,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075022455] [2021-10-11 00:26:00,578 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:26:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:00,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1319514639, now seen corresponding path program 1 times [2021-10-11 00:26:00,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:00,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824548928] [2021-10-11 00:26:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:00,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:00,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824548928] [2021-10-11 00:26:00,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:00,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:00,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271980105] [2021-10-11 00:26:00,685 INFO L811 eck$LassoCheckResult]: loop already infeasible [2021-10-11 00:26:00,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:00,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:00,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:00,702 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 5 states. [2021-10-11 00:26:00,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:00,855 INFO L93 Difference]: Finished difference Result 307 states and 545 transitions. [2021-10-11 00:26:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:26:00,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 545 transitions. [2021-10-11 00:26:00,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2021-10-11 00:26:00,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 298 states and 528 transitions. [2021-10-11 00:26:00,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2021-10-11 00:26:00,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2021-10-11 00:26:00,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 528 transitions. [2021-10-11 00:26:00,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:26:00,899 INFO L692 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2021-10-11 00:26:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 528 transitions. [2021-10-11 00:26:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-10-11 00:26:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-10-11 00:26:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 528 transitions. [2021-10-11 00:26:00,944 INFO L715 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2021-10-11 00:26:00,944 INFO L595 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2021-10-11 00:26:00,945 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:26:00,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 298 states and 528 transitions. [2021-10-11 00:26:00,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2021-10-11 00:26:00,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:26:00,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:26:00,952 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:00,953 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:00,953 INFO L794 eck$LassoCheckResult]: Stem: 830#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~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; 644#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 645#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 894#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 891#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 796#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 789#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 676#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 786#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 738#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 734#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 732#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 733#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 725#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 885#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 824#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 884#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 640#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 855#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 710#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 706#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 701#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 702#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 700#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 922#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 911#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 909#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 839#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 835#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 629#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 671#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 669#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 670#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 663#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 780#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 777#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 886#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 784#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 782#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 651#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 781#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 719#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 715#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 713#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 714#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 712#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 875#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 812#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 874#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 849#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 847#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 680#L897-1 init_#res := init_~tmp___23~0; 770#L1066 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 646#L21 assume !(0 == assume_abort_if_not_~cond); 647#L20 ~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 := 0; 720#L1203-2 [2021-10-11 00:26:00,954 INFO L796 eck$LassoCheckResult]: Loop: 720#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 659#L109 assume !(0 != ~mode1~0 % 256); 661#L141 assume !(~r1~0 < 3); 771#L141-1 ~mode1~0 := 1; 648#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 649#L162 assume !(0 != ~mode2~0 % 256); 898#L194 assume !(~r2~0 < 3); 692#L194-1 ~mode2~0 := 1; 778#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 804#L215 assume !(0 != ~mode3~0 % 256); 806#L247 assume !(~r3~0 < 3); 757#L247-1 ~mode3~0 := 1; 785#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 739#L268 assume !(0 != ~mode4~0 % 256); 741#L300 assume !(~r4~0 < 3); 831#L300-1 ~mode4~0 := 1; 722#L268-2 ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 723#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 882#L1075 assume ~st1~0 + ~nl1~0 <= 1; 883#L1076 assume ~st2~0 + ~nl2~0 <= 1; 765#L1077 assume ~st3~0 + ~nl3~0 <= 1; 636#L1078 assume ~st4~0 + ~nl4~0 <= 1; 637#L1079 assume ~r1~0 >= 3; 703#L1083 assume ~r1~0 < 3; 704#L1088 assume ~r1~0 >= 3; 766#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 878#L1074-1 check_#res := check_~tmp~1; 914#L1126 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 923#L1246 assume !(0 == assert_~arg % 256); 924#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 720#L1203-2 [2021-10-11 00:26:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2021-10-11 00:26:00,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:00,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712166636] [2021-10-11 00:26:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:01,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712166636] [2021-10-11 00:26:01,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:01,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:01,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025319136] [2021-10-11 00:26:01,121 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:26:01,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:01,122 INFO L82 PathProgramCache]: Analyzing trace with hash 94444480, now seen corresponding path program 1 times [2021-10-11 00:26:01,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:01,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307420331] [2021-10-11 00:26:01,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:01,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307420331] [2021-10-11 00:26:01,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:01,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:26:01,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499094257] [2021-10-11 00:26:01,176 INFO L811 eck$LassoCheckResult]: loop already infeasible [2021-10-11 00:26:01,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:01,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:26:01,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:26:01,177 INFO L87 Difference]: Start difference. First operand 298 states and 528 transitions. cyclomatic complexity: 231 Second operand 3 states. [2021-10-11 00:26:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:01,237 INFO L93 Difference]: Finished difference Result 383 states and 662 transitions. [2021-10-11 00:26:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:26:01,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 383 states and 662 transitions. [2021-10-11 00:26:01,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2021-10-11 00:26:01,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 383 states to 383 states and 662 transitions. [2021-10-11 00:26:01,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 383 [2021-10-11 00:26:01,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 383 [2021-10-11 00:26:01,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 383 states and 662 transitions. [2021-10-11 00:26:01,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:26:01,251 INFO L692 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2021-10-11 00:26:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states and 662 transitions. [2021-10-11 00:26:01,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-10-11 00:26:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2021-10-11 00:26:01,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 662 transitions. [2021-10-11 00:26:01,269 INFO L715 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2021-10-11 00:26:01,269 INFO L595 BuchiCegarLoop]: Abstraction has 383 states and 662 transitions. [2021-10-11 00:26:01,269 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:26:01,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 383 states and 662 transitions. [2021-10-11 00:26:01,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2021-10-11 00:26:01,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:26:01,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:26:01,276 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:01,276 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:26:01,276 INFO L794 eck$LassoCheckResult]: Stem: 1518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(37);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~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; 1334#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~nondet52, main_#t~nondet53, main_#t~nondet54, main_#t~nondet55, main_#t~nondet56, main_#t~nondet57, main_#t~nondet58, main_#t~ret59, main_#t~ret60, main_#t~post61, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep13~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep14~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep21~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep23~0 := main_#t~nondet23;havoc main_#t~nondet23;~ep24~0 := main_#t~nondet24;havoc main_#t~nondet24;~ep31~0 := main_#t~nondet25;havoc main_#t~nondet25;~ep32~0 := main_#t~nondet26;havoc main_#t~nondet26;~ep34~0 := main_#t~nondet27;havoc main_#t~nondet27;~ep41~0 := main_#t~nondet28;havoc main_#t~nondet28;~ep42~0 := main_#t~nondet29;havoc main_#t~nondet29;~ep43~0 := main_#t~nondet30;havoc main_#t~nondet30;~id1~0 := main_#t~nondet31;havoc main_#t~nondet31;~r1~0 := main_#t~nondet32;havoc main_#t~nondet32;~st1~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl1~0 := main_#t~nondet34;havoc main_#t~nondet34;~m1~0 := main_#t~nondet35;havoc main_#t~nondet35;~max1~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode1~0 := main_#t~nondet37;havoc main_#t~nondet37;~id2~0 := main_#t~nondet38;havoc main_#t~nondet38;~r2~0 := main_#t~nondet39;havoc main_#t~nondet39;~st2~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl2~0 := main_#t~nondet41;havoc main_#t~nondet41;~m2~0 := main_#t~nondet42;havoc main_#t~nondet42;~max2~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode2~0 := main_#t~nondet44;havoc main_#t~nondet44;~id3~0 := main_#t~nondet45;havoc main_#t~nondet45;~r3~0 := main_#t~nondet46;havoc main_#t~nondet46;~st3~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl3~0 := main_#t~nondet48;havoc main_#t~nondet48;~m3~0 := main_#t~nondet49;havoc main_#t~nondet49;~max3~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode3~0 := main_#t~nondet51;havoc main_#t~nondet51;~id4~0 := main_#t~nondet52;havoc main_#t~nondet52;~r4~0 := main_#t~nondet53;havoc main_#t~nondet53;~st4~0 := main_#t~nondet54;havoc main_#t~nondet54;~nl4~0 := main_#t~nondet55;havoc main_#t~nondet55;~m4~0 := main_#t~nondet56;havoc main_#t~nondet56;~max4~0 := main_#t~nondet57;havoc main_#t~nondet57;~mode4~0 := main_#t~nondet58;havoc main_#t~nondet58;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 1335#L393 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1584#L404 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1580#L414 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1485#L425 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1478#L435 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1366#L446 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1477#L456 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1427#L467 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1423#L477 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1421#L488 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1422#L498 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1414#L509 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1574#L519 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1512#L530 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1573#L540 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1330#L551 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1544#L561 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1399#L572 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1395#L582 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1391#L593 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1392#L603 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1390#L614 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1613#L624 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1600#L635 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1598#L645 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1528#L656 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1525#L666 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1319#L677 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1363#L687 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1359#L698 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1360#L708 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1353#L719 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1468#L729 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1466#L740 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1575#L750 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1473#L761 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1471#L771 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1341#L782 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1470#L792 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1408#L803 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1404#L813 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1402#L824 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1403#L834 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1401#L845 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1564#L855 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1499#L866 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1563#L876 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1538#L887 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1536#L897 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1372#L897-1 init_#res := init_~tmp___23~0; 1458#L1066 main_#t~ret59 := init_#res;main_~i2~0 := main_#t~ret59;havoc main_#t~ret59;assume_abort_if_not_#in~cond := main_~i2~0;havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; 1336#L21 assume !(0 == assume_abort_if_not_~cond); 1337#L20 ~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 := 0; 1409#L1203-2 [2021-10-11 00:26:01,277 INFO L796 eck$LassoCheckResult]: Loop: 1409#L1203-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 1622#L109 assume !(0 != ~mode1~0 % 256); 1621#L141 assume ~r1~0 < 3; 1357#L142 assume !(0 != ~ep12~0 % 256); 1343#L142-2 assume !(0 != ~ep13~0 % 256); 1344#L145-1 assume !(0 != ~ep14~0 % 256); 1602#L141-1 ~mode1~0 := 1; 1684#L109-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 1682#L162 assume !(0 != ~mode2~0 % 256); 1683#L194 assume !(~r2~0 < 3); 1669#L194-1 ~mode2~0 := 1; 1664#L162-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 1662#L215 assume !(0 != ~mode3~0 % 256); 1663#L247 assume !(~r3~0 < 3); 1651#L247-1 ~mode3~0 := 1; 1650#L215-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 1646#L268 assume !(0 != ~mode4~0 % 256); 1642#L300 assume !(~r4~0 < 3); 1635#L300-1 ~mode4~0 := 1; 1634#L268-2 ~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;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1633#L1074 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1632#L1075 assume ~st1~0 + ~nl1~0 <= 1; 1631#L1076 assume ~st2~0 + ~nl2~0 <= 1; 1630#L1077 assume ~st3~0 + ~nl3~0 <= 1; 1629#L1078 assume ~st4~0 + ~nl4~0 <= 1; 1628#L1079 assume !(~r1~0 >= 3); 1615#L1082 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1616#L1083 assume ~r1~0 < 3; 1627#L1088 assume !(~r1~0 >= 3); 1619#L1092 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1620#L1093 assume ~r1~0 < 3;check_~tmp~1 := 1; 1626#L1074-1 check_#res := check_~tmp~1; 1625#L1126 main_#t~ret60 := check_#res;main_~c1~0 := main_#t~ret60;havoc main_#t~ret60;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1624#L1246 assume !(0 == assert_~arg % 256); 1623#L1241 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 1409#L1203-2 [2021-10-11 00:26:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:01,277 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2021-10-11 00:26:01,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:01,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582245749] [2021-10-11 00:26:01,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:01,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582245749] [2021-10-11 00:26:01,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:26:01,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:26:01,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788149670] [2021-10-11 00:26:01,373 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:26:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1683797340, now seen corresponding path program 1 times [2021-10-11 00:26:01,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:26:01,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382463674] [2021-10-11 00:26:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:26:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:26:01,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:26:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:26:01,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:26:01,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:26:02,018 WARN L197 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2021-10-11 00:26:02,532 WARN L197 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 139 [2021-10-11 00:26:02,547 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:26:02,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:26:02,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:26:02,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:26:02,548 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:26:02,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:02,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:26:02,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:26:02,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2021-10-11 00:26:02,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:26:02,549 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:26:02,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:02,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,192 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-10-11 00:26:03,573 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-10-11 00:26:03,615 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:26:03,615 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:03,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:26:03,632 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:03,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:26:03,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:26:03,764 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:26:03,771 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:26:03,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:26:03,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:26:03,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:26:03,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:26:03,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:03,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:26:03,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:26:03,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2021-10-11 00:26:03,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:26:03,771 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:26:03,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:03,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:26:04,286 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-10-11 00:26:04,657 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-10-11 00:26:04,778 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:26:04,782 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:04,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:04,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:04,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:04,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:04,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:04,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:04,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:04,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:04,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:04,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:04,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:04,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:04,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:04,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:04,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:04,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:04,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:04,856 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:04,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:04,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:04,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:04,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:04,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:04,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:04,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:04,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:04,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:04,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:04,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:04,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:04,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:04,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:04,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:04,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:04,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:04,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:04,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:04,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:04,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:04,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:04,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:04,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:04,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:04,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:05,012 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:05,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:05,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:05,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:05,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:26:05,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:26:05,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:26:05,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:26:05,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:26:05,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:26:05,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:26:05,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:26:05,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,553 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:26:05,587 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:26:05,587 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11cf9ebe-a2c1-44cd-a81f-636840bea147/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:26:05,620 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:26:05,620 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:26:05,620 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:26:05,621 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:26:05,656 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:26:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:26:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:05,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:26:05,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:26:06,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:26:06,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:26:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:26:06,129 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:26:06,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 383 states and 662 transitions. cyclomatic complexity: 280 Second operand 3 states. [2021-10-11 00:26:06,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 383 states and 662 transitions. cyclomatic complexity: 280. Second operand 3 states. Result 573 states and 970 transitions. Complement of second has 4 states. [2021-10-11 00:26:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:26:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:26:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2021-10-11 00:26:06,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 35 letters. [2021-10-11 00:26:06,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:26:06,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 90 letters. Loop has 35 letters. [2021-10-11 00:26:06,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:26:06,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 70 letters. [2021-10-11 00:26:06,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:26:06,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 573 states and 970 transitions. [2021-10-11 00:26:06,272 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:26:06,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 573 states to 0 states and 0 transitions. [2021-10-11 00:26:06,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:26:06,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:26:06,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:26:06,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:26:06,273 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:06,273 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:06,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:26:06,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:26:06,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:26:06,280 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2021-10-11 00:26:06,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:26:06,281 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-11 00:26:06,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:26:06,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-11 00:26:06,281 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:26:06,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:26:06,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:26:06,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:26:06,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:26:06,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:26:06,282 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:06,282 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:06,282 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:26:06,282 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:26:06,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:26:06,282 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:26:06,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:26:06,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:26:06 BoogieIcfgContainer [2021-10-11 00:26:06,288 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:26:06,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:26:06,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:26:06,291 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:26:06,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:26:00" (3/4) ... [2021-10-11 00:26:06,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:26:06,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:26:06,302 INFO L168 Benchmark]: Toolchain (without parser) took 8481.31 ms. Allocated memory was 100.7 MB in the beginning and 211.8 MB in the end (delta: 111.1 MB). Free memory was 59.8 MB in the beginning and 93.5 MB in the end (delta: -33.7 MB). Peak memory consumption was 78.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:06,303 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:06,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.54 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 65.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:06,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.91 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 61.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:06,304 INFO L168 Benchmark]: Boogie Preprocessor took 81.52 ms. Allocated memory is still 100.7 MB. Free memory was 61.3 MB in the beginning and 57.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:06,307 INFO L168 Benchmark]: RCFGBuilder took 1458.80 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 57.1 MB in the beginning and 69.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:06,308 INFO L168 Benchmark]: BuchiAutomizer took 6257.37 ms. Allocated memory was 127.9 MB in the beginning and 211.8 MB in the end (delta: 83.9 MB). Free memory was 69.7 MB in the beginning and 93.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:26:06,308 INFO L168 Benchmark]: Witness Printer took 4.62 ms. Allocated memory is still 211.8 MB. Free memory is still 93.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:26:06,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 562.54 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 65.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.91 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 61.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.52 ms. Allocated memory is still 100.7 MB. Free memory was 61.3 MB in the beginning and 57.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1458.80 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 57.1 MB in the beginning and 69.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6257.37 ms. Allocated memory was 127.9 MB in the beginning and 211.8 MB in the end (delta: 83.9 MB). Free memory was 69.7 MB in the beginning and 93.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.62 ms. Allocated memory is still 211.8 MB. Free memory is still 93.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 15 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 383 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1592 SDtfs, 820 SDslu, 2285 SDs, 0 SdLazy, 35 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...