./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer --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 7aea0c1b61abe786b5e4c994117ee3eda9de9968 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:10:03,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:10:03,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:10:03,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:10:03,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:10:03,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:10:03,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:10:03,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:10:03,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:10:03,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:10:03,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:10:03,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:10:03,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:03,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:03,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:03,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:03,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:03,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:03,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:03,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:03,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:03,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:03,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:03,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:03,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:10:03,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:10:03,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:10:03,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:10:03,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:10:03,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:10:03,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:03,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:03,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:03,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:03,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:03,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:03,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:03,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:03,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:03,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:03,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:03,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:10:03,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:03,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:03,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:03,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:03,460 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:10:03,460 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:10:03,461 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:10:03,461 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:10:03,461 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:10:03,461 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:10:03,463 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:10:03,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:03,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:10:03,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:10:03,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:10:03,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:10:03,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:03,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:10:03,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:10:03,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:10:03,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:10:03,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:03,466 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:10:03,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:03,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:10:03,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:03,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:10:03,467 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:10:03,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:03,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:10:03,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:10:03,470 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:10:03,471 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:10:03,472 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-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aea0c1b61abe786b5e4c994117ee3eda9de9968 [2020-11-30 00:10:03,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:03,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:03,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:03,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:03,772 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:03,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-11-30 00:10:03,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/data/b7884682e/8dd907f5fcba458aa164dadbedb5edba/FLAG970989b5e [2020-11-30 00:10:04,356 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:10:04,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-11-30 00:10:04,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/data/b7884682e/8dd907f5fcba458aa164dadbedb5edba/FLAG970989b5e [2020-11-30 00:10:04,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/data/b7884682e/8dd907f5fcba458aa164dadbedb5edba [2020-11-30 00:10:04,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:10:04,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:10:04,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:04,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:10:04,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:10:04,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:04" (1/1) ... [2020-11-30 00:10:04,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0af51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:04, skipping insertion in model container [2020-11-30 00:10:04,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:04" (1/1) ... [2020-11-30 00:10:04,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:10:04,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:10:04,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:04,980 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:10:05,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:05,049 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:10:05,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05 WrapperNode [2020-11-30 00:10:05,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:05,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:05,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:10:05,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:10:05,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:05,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:10:05,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:10:05,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:10:05,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... [2020-11-30 00:10:05,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:10:05,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:10:05,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:10:05,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:10:05,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/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 [2020-11-30 00:10:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:10:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:10:05,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:10:05,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:10:06,048 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:10:06,048 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-30 00:10:06,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:06 BoogieIcfgContainer [2020-11-30 00:10:06,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:10:06,051 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:10:06,051 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:10:06,055 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:10:06,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:10:06,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:10:04" (1/3) ... [2020-11-30 00:10:06,057 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17b2b50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:10:06, skipping insertion in model container [2020-11-30 00:10:06,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:10:06,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:05" (2/3) ... [2020-11-30 00:10:06,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17b2b50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:10:06, skipping insertion in model container [2020-11-30 00:10:06,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:10:06,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:06" (3/3) ... [2020-11-30 00:10:06,059 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-11-30 00:10:06,105 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:10:06,105 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:10:06,105 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:10:06,105 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:10:06,105 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:10:06,105 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:10:06,106 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:10:06,106 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:10:06,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states. [2020-11-30 00:10:06,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63 [2020-11-30 00:10:06,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:06,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:06,173 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:06,173 INFO L853 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] [2020-11-30 00:10:06,173 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:10:06,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states. [2020-11-30 00:10:06,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63 [2020-11-30 00:10:06,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:06,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:06,192 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:06,193 INFO L853 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] [2020-11-30 00:10:06,200 INFO L794 eck$LassoCheckResult]: Stem: 76#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(49);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~ret35, main_#t~ret36, main_#t~post37, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~alive1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive2~0 := main_#t~nondet24;havoc main_#t~nondet24;~id3~0 := main_#t~nondet25;havoc main_#t~nondet25;~st3~0 := main_#t~nondet26;havoc main_#t~nondet26;~send3~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode3~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive3~0 := main_#t~nondet29;havoc main_#t~nondet29;~id4~0 := main_#t~nondet30;havoc main_#t~nondet30;~st4~0 := main_#t~nondet31;havoc main_#t~nondet31;~send4~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode4~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive4~0 := main_#t~nondet34;havoc main_#t~nondet34;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 72#L198true assume !(0 == ~r1~0);init_~tmp~0 := 0; 70#L198-1true init_#res := init_~tmp~0; 40#L295true main_#t~ret35 := init_#res;main_~i2~0 := main_#t~ret35;havoc main_#t~ret35; 64#L347true assume !(0 == main_~i2~0); 51#L347-2true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0 := 0; 91#L357-2true [2020-11-30 00:10:06,201 INFO L796 eck$LassoCheckResult]: Loop: 91#L357-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 12#L65true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 52#L69true assume !(node1_~m1~0 != ~nomsg~0); 68#L69-1true ~mode1~0 := 0; 10#L65-2true havoc node2_#t~ite8, node2_#t~ite9, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 46#L97true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 35#L100true assume !(node2_~m2~0 != ~nomsg~0); 34#L100-1true ~mode2~0 := 0; 44#L97-2true havoc node3_#t~ite10, node3_#t~ite11, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 15#L131true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 92#L134true assume !(node3_~m3~0 != ~nomsg~0); 90#L134-1true ~mode3~0 := 0; 13#L131-2true havoc node4_#t~ite12, node4_#t~ite13, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 71#L165true assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 56#L168true assume !(node4_~m4~0 != ~nomsg~0); 55#L168-1true ~mode4~0 := 0; 77#L165-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 50#L303true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 67#L303-1true check_#res := check_~tmp~1; 27#L315true main_#t~ret36 := check_#res;main_~c1~0 := main_#t~ret36;havoc main_#t~ret36;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 19#L384true assume !(0 == assert_~arg % 256); 99#L379true main_#t~post37 := main_~i2~0;main_~i2~0 := 1 + main_#t~post37;havoc main_#t~post37; 91#L357-2true [2020-11-30 00:10:06,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:06,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1938506578, now seen corresponding path program 1 times [2020-11-30 00:10:06,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:06,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289605381] [2020-11-30 00:10:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:06,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289605381] [2020-11-30 00:10:06,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:06,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:10:06,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729465496] [2020-11-30 00:10:06,448 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:10:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:06,453 INFO L82 PathProgramCache]: Analyzing trace with hash -388024919, now seen corresponding path program 1 times [2020-11-30 00:10:06,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:06,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802100387] [2020-11-30 00:10:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:06,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802100387] [2020-11-30 00:10:06,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:06,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:10:06,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69288693] [2020-11-30 00:10:06,666 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:10:06,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:06,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:10:06,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:10:06,685 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 5 states. [2020-11-30 00:10:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:06,819 INFO L93 Difference]: Finished difference Result 161 states and 258 transitions. [2020-11-30 00:10:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:10:06,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 258 transitions. [2020-11-30 00:10:06,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-11-30 00:10:06,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 152 states and 226 transitions. [2020-11-30 00:10:06,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-11-30 00:10:06,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-11-30 00:10:06,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 226 transitions. [2020-11-30 00:10:06,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:10:06,836 INFO L691 BuchiCegarLoop]: Abstraction has 152 states and 226 transitions. [2020-11-30 00:10:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 226 transitions. [2020-11-30 00:10:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 91. [2020-11-30 00:10:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-30 00:10:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2020-11-30 00:10:06,871 INFO L714 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2020-11-30 00:10:06,871 INFO L594 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2020-11-30 00:10:06,871 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:10:06,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2020-11-30 00:10:06,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-11-30 00:10:06,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:06,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:06,875 INFO L852 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] [2020-11-30 00:10:06,875 INFO L853 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] [2020-11-30 00:10:06,876 INFO L794 eck$LassoCheckResult]: Stem: 349#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(49);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 309#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~ret35, main_#t~ret36, main_#t~post37, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~alive1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive2~0 := main_#t~nondet24;havoc main_#t~nondet24;~id3~0 := main_#t~nondet25;havoc main_#t~nondet25;~st3~0 := main_#t~nondet26;havoc main_#t~nondet26;~send3~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode3~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive3~0 := main_#t~nondet29;havoc main_#t~nondet29;~id4~0 := main_#t~nondet30;havoc main_#t~nondet30;~st4~0 := main_#t~nondet31;havoc main_#t~nondet31;~send4~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode4~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive4~0 := main_#t~nondet34;havoc main_#t~nondet34;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 310#L198 assume 0 == ~r1~0; 335#L199 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 353#L200 assume ~id1~0 >= 0; 304#L201 assume 0 == ~st1~0; 305#L202 assume ~send1~0 == ~id1~0; 357#L203 assume 0 == ~mode1~0 % 256; 323#L204 assume ~id2~0 >= 0; 324#L205 assume 0 == ~st2~0; 350#L206 assume ~send2~0 == ~id2~0; 362#L207 assume 0 == ~mode2~0 % 256; 286#L208 assume ~id3~0 >= 0; 287#L209 assume 0 == ~st3~0; 337#L210 assume ~send3~0 == ~id3~0; 355#L211 assume 0 == ~mode3~0 % 256; 306#L212 assume ~id4~0 >= 0; 307#L213 assume 0 == ~st4~0; 358#L214 assume ~send4~0 == ~id4~0; 325#L215 assume 0 == ~mode4~0 % 256; 326#L216 assume ~id1~0 != ~id2~0; 351#L217 assume ~id1~0 != ~id3~0; 363#L218 assume ~id1~0 != ~id4~0; 288#L219 assume ~id2~0 != ~id3~0; 289#L220 assume ~id2~0 != ~id4~0; 338#L221 assume ~id3~0 != ~id4~0;init_~tmp~0 := 1; 333#L198-1 init_#res := init_~tmp~0; 334#L295 main_#t~ret35 := init_#res;main_~i2~0 := main_#t~ret35;havoc main_#t~ret35; 328#L347 assume !(0 == main_~i2~0); 281#L347-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0 := 0; 282#L357-2 [2020-11-30 00:10:06,876 INFO L796 eck$LassoCheckResult]: Loop: 282#L357-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 319#L65 assume !(0 != ~mode1~0 % 256); 320#L83 assume !(0 != ~alive1~0 % 256); 299#L83-2 ~mode1~0 := 1; 311#L65-2 havoc node2_#t~ite8, node2_#t~ite9, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 312#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 364#L100 assume !(node2_~m2~0 != ~nomsg~0); 292#L100-1 ~mode2~0 := 0; 303#L97-2 havoc node3_#t~ite10, node3_#t~ite11, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 329#L131 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 330#L134 assume !(node3_~m3~0 != ~nomsg~0); 296#L134-1 ~mode3~0 := 0; 321#L131-2 havoc node4_#t~ite12, node4_#t~ite13, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 322#L165 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 300#L168 assume !(node4_~m4~0 != ~nomsg~0); 293#L168-1 ~mode4~0 := 0; 294#L165-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 276#L303 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 277#L303-1 check_#res := check_~tmp~1; 332#L315 main_#t~ret36 := check_#res;main_~c1~0 := main_#t~ret36;havoc main_#t~ret36;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 343#L384 assume !(0 == assert_~arg % 256); 344#L379 main_#t~post37 := main_~i2~0;main_~i2~0 := 1 + main_#t~post37;havoc main_#t~post37; 282#L357-2 [2020-11-30 00:10:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:06,877 INFO L82 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 1 times [2020-11-30 00:10:06,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:06,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120282864] [2020-11-30 00:10:06,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:06,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:06,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:06,965 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:06,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:06,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2060736829, now seen corresponding path program 1 times [2020-11-30 00:10:06,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:06,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944818348] [2020-11-30 00:10:06,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:07,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:07,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944818348] [2020-11-30 00:10:07,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:07,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:10:07,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742549850] [2020-11-30 00:10:07,069 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:10:07,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:07,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:10:07,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:10:07,070 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 38 Second operand 5 states. [2020-11-30 00:10:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:07,141 INFO L93 Difference]: Finished difference Result 94 states and 130 transitions. [2020-11-30 00:10:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:10:07,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 130 transitions. [2020-11-30 00:10:07,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-11-30 00:10:07,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 91 states and 126 transitions. [2020-11-30 00:10:07,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2020-11-30 00:10:07,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2020-11-30 00:10:07,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 126 transitions. [2020-11-30 00:10:07,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:10:07,146 INFO L691 BuchiCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-11-30 00:10:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 126 transitions. [2020-11-30 00:10:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-11-30 00:10:07,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-30 00:10:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2020-11-30 00:10:07,152 INFO L714 BuchiCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-11-30 00:10:07,152 INFO L594 BuchiCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-11-30 00:10:07,152 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:10:07,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 126 transitions. [2020-11-30 00:10:07,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-11-30 00:10:07,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:10:07,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:10:07,157 INFO L852 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] [2020-11-30 00:10:07,158 INFO L853 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] [2020-11-30 00:10:07,159 INFO L794 eck$LassoCheckResult]: Stem: 546#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(49);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0; 507#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~ret35, main_#t~ret36, main_#t~post37, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~alive1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive2~0 := main_#t~nondet24;havoc main_#t~nondet24;~id3~0 := main_#t~nondet25;havoc main_#t~nondet25;~st3~0 := main_#t~nondet26;havoc main_#t~nondet26;~send3~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode3~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive3~0 := main_#t~nondet29;havoc main_#t~nondet29;~id4~0 := main_#t~nondet30;havoc main_#t~nondet30;~st4~0 := main_#t~nondet31;havoc main_#t~nondet31;~send4~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode4~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive4~0 := main_#t~nondet34;havoc main_#t~nondet34;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 508#L198 assume 0 == ~r1~0; 533#L199 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 551#L200 assume ~id1~0 >= 0; 500#L201 assume 0 == ~st1~0; 501#L202 assume ~send1~0 == ~id1~0; 554#L203 assume 0 == ~mode1~0 % 256; 520#L204 assume ~id2~0 >= 0; 521#L205 assume 0 == ~st2~0; 547#L206 assume ~send2~0 == ~id2~0; 559#L207 assume 0 == ~mode2~0 % 256; 482#L208 assume ~id3~0 >= 0; 483#L209 assume 0 == ~st3~0; 534#L210 assume ~send3~0 == ~id3~0; 552#L211 assume 0 == ~mode3~0 % 256; 502#L212 assume ~id4~0 >= 0; 503#L213 assume 0 == ~st4~0; 555#L214 assume ~send4~0 == ~id4~0; 522#L215 assume 0 == ~mode4~0 % 256; 523#L216 assume ~id1~0 != ~id2~0; 548#L217 assume ~id1~0 != ~id3~0; 560#L218 assume ~id1~0 != ~id4~0; 484#L219 assume ~id2~0 != ~id3~0; 485#L220 assume ~id2~0 != ~id4~0; 535#L221 assume ~id3~0 != ~id4~0;init_~tmp~0 := 1; 530#L198-1 init_#res := init_~tmp~0; 531#L295 main_#t~ret35 := init_#res;main_~i2~0 := main_#t~ret35;havoc main_#t~ret35; 524#L347 assume !(0 == main_~i2~0); 475#L347-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0 := 0; 476#L357-2 [2020-11-30 00:10:07,160 INFO L796 eck$LassoCheckResult]: Loop: 476#L357-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 516#L65 assume !(0 != ~mode1~0 % 256); 517#L83 assume !(0 != ~alive1~0 % 256); 495#L83-2 ~mode1~0 := 1; 505#L65-2 havoc node2_#t~ite8, node2_#t~ite9, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 506#L97 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 561#L100 assume !(node2_~m2~0 != ~nomsg~0); 488#L100-1 ~mode2~0 := 0; 499#L97-2 havoc node3_#t~ite10, node3_#t~ite11, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 526#L131 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 527#L134 assume !(node3_~m3~0 != ~nomsg~0); 490#L134-1 ~mode3~0 := 0; 518#L131-2 havoc node4_#t~ite12, node4_#t~ite13, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 519#L165 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 496#L168 assume !(node4_~m4~0 != ~nomsg~0); 492#L168-1 ~mode4~0 := 0; 493#L165-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 473#L303 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 474#L304 assume ~r1~0 < 4;check_~tmp~1 := 1; 512#L303-1 check_#res := check_~tmp~1; 529#L315 main_#t~ret36 := check_#res;main_~c1~0 := main_#t~ret36;havoc main_#t~ret36;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 540#L384 assume !(0 == assert_~arg % 256); 541#L379 main_#t~post37 := main_~i2~0;main_~i2~0 := 1 + main_#t~post37;havoc main_#t~post37; 476#L357-2 [2020-11-30 00:10:07,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:07,160 INFO L82 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 2 times [2020-11-30 00:10:07,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:07,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618354497] [2020-11-30 00:10:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:07,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:07,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:07,279 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:07,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:07,284 INFO L82 PathProgramCache]: Analyzing trace with hash 158338649, now seen corresponding path program 1 times [2020-11-30 00:10:07,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:07,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590243564] [2020-11-30 00:10:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:07,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:07,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:07,342 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:07,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:07,350 INFO L82 PathProgramCache]: Analyzing trace with hash 300162831, now seen corresponding path program 1 times [2020-11-30 00:10:07,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:07,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31787500] [2020-11-30 00:10:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:07,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31787500] [2020-11-30 00:10:07,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:07,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:10:07,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825616268] [2020-11-30 00:10:07,914 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-11-30 00:10:08,273 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-11-30 00:10:08,285 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:10:08,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:10:08,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:10:08,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:10:08,286 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:10:08,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:10:08,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:10:08,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:10:08,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-30 00:10:08,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:10:08,287 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:10:08,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:08,817 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 00:10:09,087 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 00:10:09,129 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:10:09,130 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/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 [2020-11-30 00:10:09,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:10:09,139 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/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 [2020-11-30 00:10:09,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:10:09,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:10:09,190 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:10:09,191 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:10:09,192 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:10:09,192 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:10:09,192 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:10:09,192 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:10:09,192 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:10:09,192 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:10:09,192 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:10:09,192 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-11-30 00:10:09,192 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:10:09,192 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:10:09,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:10:09,594 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 00:10:09,932 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 00:10:10,029 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:10:10,032 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:10:10,038 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 [2020-11-30 00:10:10,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:10:10,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:10:10,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:10:10,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:10:10,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:10:10,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:10:10,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:10:10,051 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:10:10,070 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:10:10,070 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-vcloud-master/worker/run_dir_422e18d6-d443-44cd-8be9-0bc41b08079a/bin/uautomizer/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 [2020-11-30 00:10:10,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:10:10,089 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:10:10,090 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:10:10,090 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] [2020-11-30 00:10:10,122 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:10:10,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:10,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:10:10,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:10,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:10:10,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:10,366 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 [2020-11-30 00:10:10,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 126 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-30 00:10:10,418 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 126 transitions. cyclomatic complexity: 36. Second operand 3 states. Result 152 states and 223 transitions. Complement of second has 4 states. [2020-11-30 00:10:10,419 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 [2020-11-30 00:10:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:10:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2020-11-30 00:10:10,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 126 transitions. Stem has 30 letters. Loop has 23 letters. [2020-11-30 00:10:10,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:10:10,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 126 transitions. Stem has 53 letters. Loop has 23 letters. [2020-11-30 00:10:10,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:10:10,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 126 transitions. Stem has 30 letters. Loop has 46 letters. [2020-11-30 00:10:10,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:10:10,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 223 transitions. [2020-11-30 00:10:10,427 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:10:10,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 0 states and 0 transitions. [2020-11-30 00:10:10,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:10:10,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:10:10,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:10:10,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:10:10,427 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:10:10,427 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:10:10,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:10,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:10:10,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:10:10,428 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-11-30 00:10:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:10,429 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-30 00:10:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:10:10,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-30 00:10:10,429 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:10:10,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:10:10,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:10:10,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:10:10,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:10:10,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:10:10,430 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:10:10,430 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:10:10,430 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:10:10,430 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:10:10,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:10:10,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:10:10,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:10:10,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:10:10 BoogieIcfgContainer [2020-11-30 00:10:10,435 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:10:10,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:10:10,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:10:10,435 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:10:10,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:06" (3/4) ... [2020-11-30 00:10:10,438 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:10:10,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:10:10,440 INFO L168 Benchmark]: Toolchain (without parser) took 5775.73 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 56.9 MB in the beginning and 79.5 MB in the end (delta: -22.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,440 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:10,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.62 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 63.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.76 ms. Allocated memory is still 90.2 MB. Free memory was 63.2 MB in the beginning and 60.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,442 INFO L168 Benchmark]: Boogie Preprocessor took 50.17 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 59.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,442 INFO L168 Benchmark]: RCFGBuilder took 880.33 ms. Allocated memory is still 90.2 MB. Free memory was 59.0 MB in the beginning and 56.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,443 INFO L168 Benchmark]: BuchiAutomizer took 4383.84 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 80.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,444 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 132.1 MB. Free memory was 80.6 MB in the beginning and 79.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:10,448 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 71.3 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.62 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 63.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.76 ms. Allocated memory is still 90.2 MB. Free memory was 63.2 MB in the beginning and 60.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.17 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 59.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 880.33 ms. Allocated memory is still 90.2 MB. Free memory was 59.0 MB in the beginning and 56.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4383.84 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 80.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.91 ms. Allocated memory is still 132.1 MB. Free memory was 80.6 MB in the beginning and 79.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 91 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 403 SDtfs, 227 SDslu, 895 SDs, 0 SdLazy, 36 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital120 mio100 ax100 hnf100 lsp39 ukn100 mio100 lsp100 div102 bol100 ite100 ukn100 eq222 hnf85 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 56ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...