./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 addd1d2410281e348030b8688205c518d1773b5a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 20:14:09,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:14:09,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:14:09,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:14:09,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:14:09,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:14:09,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:14:09,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:14:09,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:14:09,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:14:09,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:14:09,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:14:09,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:14:09,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:14:09,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:14:09,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:14:09,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:14:09,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:14:09,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:14:09,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:14:09,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:14:09,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:14:09,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:14:09,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:14:09,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:14:09,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:14:09,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:14:09,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:14:09,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:14:09,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:14:09,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:14:09,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:14:09,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:14:09,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:14:09,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:14:09,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:14:09,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:14:09,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:14:09,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:14:09,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:14:09,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:14:09,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:14:09,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:14:09,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:14:09,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:14:09,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:14:09,949 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:14:09,949 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:14:09,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:14:09,950 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:14:09,950 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:14:09,950 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:14:09,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:14:09,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:14:09,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:14:09,953 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:14:09,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:14:09,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:14:09,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:14:09,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:14:09,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:14:09,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:14:09,955 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:14:09,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:14:09,955 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:14:09,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:14:09,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:14:09,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:14:09,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:14:09,957 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:14:09,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:14:09,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:14:09,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:14:09,958 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:14:09,959 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:14:09,960 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> addd1d2410281e348030b8688205c518d1773b5a [2020-10-19 20:14:10,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:14:10,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:14:10,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:14:10,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:14:10,302 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:14:10,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-19 20:14:10,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b74eb8a/029b8e21bf854e7cb2b17ed5d88101d9/FLAGe0d6c6282 [2020-10-19 20:14:10,945 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:14:10,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-19 20:14:10,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b74eb8a/029b8e21bf854e7cb2b17ed5d88101d9/FLAGe0d6c6282 [2020-10-19 20:14:11,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1b74eb8a/029b8e21bf854e7cb2b17ed5d88101d9 [2020-10-19 20:14:11,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:14:11,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:14:11,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:14:11,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:14:11,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:14:11,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:11,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c999e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11, skipping insertion in model container [2020-10-19 20:14:11,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:11,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:14:11,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:14:11,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:14:11,792 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:14:11,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:14:11,970 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:14:11,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11 WrapperNode [2020-10-19 20:14:11,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:14:11,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:14:11,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:14:11,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:14:11,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:11,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:14:12,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:14:12,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:14:12,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:14:12,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... [2020-10-19 20:14:12,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:14:12,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:14:12,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:14:12,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:14:12,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 20:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:14:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:14:12,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:14:13,424 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:14:13,425 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-10-19 20:14:13,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:14:13 BoogieIcfgContainer [2020-10-19 20:14:13,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:14:13,428 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:14:13,428 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:14:13,432 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:14:13,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:14:13,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:14:11" (1/3) ... [2020-10-19 20:14:13,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8d7a371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:14:13, skipping insertion in model container [2020-10-19 20:14:13,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:14:13,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:14:11" (2/3) ... [2020-10-19 20:14:13,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8d7a371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:14:13, skipping insertion in model container [2020-10-19 20:14:13,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:14:13,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:14:13" (3/3) ... [2020-10-19 20:14:13,437 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-19 20:14:13,486 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:14:13,486 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:14:13,486 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:14:13,486 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:14:13,487 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:14:13,487 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:14:13,488 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:14:13,488 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:14:13,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states. [2020-10-19 20:14:13,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-10-19 20:14:13,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:14:13,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:14:13,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:14:13,574 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] [2020-10-19 20:14:13,574 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:14:13,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states. [2020-10-19 20:14:13,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 108 [2020-10-19 20:14:13,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:14:13,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:14:13,594 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:14:13,594 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] [2020-10-19 20:14:13,603 INFO L794 eck$LassoCheckResult]: Stem: 116#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(39);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;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 18#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; 214#L441true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 212#L452true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 121#L462true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 119#L473true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 27#L483true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 26#L494true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 229#L504true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 228#L515true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 286#L525true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 284#L536true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 194#L546true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 193#L557true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 107#L567true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 105#L578true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 12#L588true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 10#L599true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 66#L609true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 64#L620true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 269#L630true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 268#L641true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 171#L651true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 170#L662true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 83#L672true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 82#L683true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 138#L693true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 137#L704true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 47#L714true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 46#L725true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 255#L735true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 254#L746true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 299#L756true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 156#L767true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 207#L777true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 205#L788true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 114#L798true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 113#L809true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 22#L819true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 20#L830true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 71#L840true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 69#L851true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 274#L861true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 273#L872true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 180#L882true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 179#L893true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 93#L903true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 91#L914true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 150#L924true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 148#L935true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 55#L945true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 57#L945-1true init_#res := init_~tmp___23~0; 305#L1114true 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; 306#L68true assume !(0 == assume_abort_if_not_~cond); 209#L67true ~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; 169#L1251-2true [2020-10-19 20:14:13,604 INFO L796 eck$LassoCheckResult]: Loop: 169#L1251-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 288#L156true assume !(0 != ~mode1~0 % 256); 197#L188true assume !(~r1~0 < 3); 192#L188-1true ~mode1~0 := 1; 282#L156-2true havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 106#L209true assume !(0 != ~mode2~0 % 256); 9#L241true assume !(~r2~0 < 3); 6#L241-1true ~mode2~0 := 1; 98#L209-2true havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 62#L262true assume !(0 != ~mode3~0 % 256); 266#L294true assume !(~r3~0 < 3); 264#L294-1true ~mode3~0 := 1; 77#L262-2true havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 186#L315true assume !(0 != ~mode4~0 % 256); 95#L347true assume !(~r4~0 < 3); 97#L347-1true ~mode4~0 := 1; 165#L315-2true ~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; 11#L1122true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 13#L1122-1true check_#res := check_~tmp~1; 172#L1174true 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; 78#L1294true assume !(0 == assert_~arg % 256); 206#L1289true main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 169#L1251-2true [2020-10-19 20:14:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:13,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2020-10-19 20:14:13,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:14:13,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545626796] [2020-10-19 20:14:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:14:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:14:14,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545626796] [2020-10-19 20:14:14,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:14:14,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 20:14:14,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857425427] [2020-10-19 20:14:14,120 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:14:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:14,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1319514575, now seen corresponding path program 1 times [2020-10-19 20:14:14,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:14:14,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693228022] [2020-10-19 20:14:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:14:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:14:14,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693228022] [2020-10-19 20:14:14,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:14:14,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 20:14:14,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722203717] [2020-10-19 20:14:14,235 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:14:14,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:14:14,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 20:14:14,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 20:14:14,257 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-10-19 20:14:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:14:14,377 INFO L93 Difference]: Finished difference Result 307 states and 545 transitions. [2020-10-19 20:14:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:14:14,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 545 transitions. [2020-10-19 20:14:14,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-10-19 20:14:14,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 298 states and 528 transitions. [2020-10-19 20:14:14,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2020-10-19 20:14:14,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2020-10-19 20:14:14,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 528 transitions. [2020-10-19 20:14:14,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:14:14,404 INFO L691 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-10-19 20:14:14,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 528 transitions. [2020-10-19 20:14:14,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-19 20:14:14,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-19 20:14:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 528 transitions. [2020-10-19 20:14:14,457 INFO L714 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-10-19 20:14:14,457 INFO L594 BuchiCegarLoop]: Abstraction has 298 states and 528 transitions. [2020-10-19 20:14:14,458 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:14:14,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 298 states and 528 transitions. [2020-10-19 20:14:14,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2020-10-19 20:14:14,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:14:14,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:14:14,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:14:14,465 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:14:14,466 INFO L794 eck$LassoCheckResult]: Stem: 833#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(39);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;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 661#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; 662#L441 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 842#L452 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 838#L462 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 686#L473 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 679#L483 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 677#L494 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 678#L504 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 676#L515 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 912#L525 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 898#L536 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 897#L546 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 825#L557 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 822#L567 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 656#L578 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 651#L588 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 647#L599 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 648#L609 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 642#L620 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 760#L630 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 758#L641 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 884#L651 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 792#L662 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 790#L672 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 630#L683 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 789#L693 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 728#L704 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 725#L714 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 723#L725 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 724#L735 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 722#L746 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 924#L756 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 785#L767 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 868#L777 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 835#L788 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 831#L798 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 674#L809 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 670#L819 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 668#L830 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 669#L840 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 664#L851 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 768#L861 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 765#L872 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 887#L882 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 807#L893 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 805#L903 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 697#L914 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 803#L924 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 744#L935 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 741#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 682#L945-1 init_#res := init_~tmp___23~0; 746#L1114 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; 926#L68 assume !(0 == assume_abort_if_not_~cond); 907#L67 ~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; 882#L1251-2 [2020-10-19 20:14:14,467 INFO L796 eck$LassoCheckResult]: Loop: 882#L1251-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 883#L156 assume !(0 != ~mode1~0 % 256); 900#L188 assume !(~r1~0 < 3); 778#L188-1 ~mode1~0 := 1; 895#L156-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 820#L209 assume !(0 != ~mode2~0 % 256); 643#L241 assume !(~r2~0 < 3); 637#L241-1 ~mode2~0 := 1; 638#L209-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 754#L262 assume !(0 != ~mode3~0 % 256); 756#L294 assume !(~r3~0 < 3); 861#L294-1 ~mode3~0 := 1; 659#L262-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 779#L315 assume !(0 != ~mode4~0 % 256); 809#L347 assume !(~r4~0 < 3); 666#L347-1 ~mode4~0 := 1; 813#L315-2 ~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; 645#L1122 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 646#L1123 assume ~st1~0 + ~nl1~0 <= 1; 818#L1124 assume ~st2~0 + ~nl2~0 <= 1; 894#L1125 assume ~st3~0 + ~nl3~0 <= 1; 921#L1126 assume ~st4~0 + ~nl4~0 <= 1; 708#L1127 assume ~r1~0 >= 3; 710#L1131 assume ~r1~0 < 3; 909#L1136 assume ~r1~0 >= 3; 885#L1141 assume ~r1~0 < 3;check_~tmp~1 := 1; 649#L1122-1 check_#res := check_~tmp~1; 650#L1174 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; 781#L1294 assume !(0 == assert_~arg % 256); 782#L1289 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 882#L1251-2 [2020-10-19 20:14:14,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2020-10-19 20:14:14,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:14:14,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566737136] [2020-10-19 20:14:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:14:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:14:14,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566737136] [2020-10-19 20:14:14,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:14:14,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 20:14:14,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087268990] [2020-10-19 20:14:14,585 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:14:14,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:14,586 INFO L82 PathProgramCache]: Analyzing trace with hash 94444544, now seen corresponding path program 1 times [2020-10-19 20:14:14,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:14:14,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403290744] [2020-10-19 20:14:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:14:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:14:14,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403290744] [2020-10-19 20:14:14,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:14:14,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:14:14,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136777091] [2020-10-19 20:14:14,621 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:14:14,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:14:14,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:14:14,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:14:14,623 INFO L87 Difference]: Start difference. First operand 298 states and 528 transitions. cyclomatic complexity: 231 Second operand 3 states. [2020-10-19 20:14:14,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:14:14,685 INFO L93 Difference]: Finished difference Result 382 states and 661 transitions. [2020-10-19 20:14:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:14:14,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 382 states and 661 transitions. [2020-10-19 20:14:14,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 190 [2020-10-19 20:14:14,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 382 states to 382 states and 661 transitions. [2020-10-19 20:14:14,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 382 [2020-10-19 20:14:14,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 382 [2020-10-19 20:14:14,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 382 states and 661 transitions. [2020-10-19 20:14:14,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:14:14,699 INFO L691 BuchiCegarLoop]: Abstraction has 382 states and 661 transitions. [2020-10-19 20:14:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states and 661 transitions. [2020-10-19 20:14:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2020-10-19 20:14:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-19 20:14:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 661 transitions. [2020-10-19 20:14:14,728 INFO L714 BuchiCegarLoop]: Abstraction has 382 states and 661 transitions. [2020-10-19 20:14:14,728 INFO L594 BuchiCegarLoop]: Abstraction has 382 states and 661 transitions. [2020-10-19 20:14:14,728 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:14:14,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 382 states and 661 transitions. [2020-10-19 20:14:14,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 190 [2020-10-19 20:14:14,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:14:14,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:14:14,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:14:14,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:14:14,741 INFO L794 eck$LassoCheckResult]: Stem: 1525#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(39);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;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 1352#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; 1353#L441 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1532#L452 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1528#L462 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1375#L473 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1368#L483 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1366#L494 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1367#L504 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1365#L515 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1608#L525 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1593#L536 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1590#L546 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1515#L557 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1512#L567 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1345#L578 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1340#L588 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1336#L599 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1337#L609 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1331#L620 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1449#L630 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1447#L641 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1575#L651 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1481#L662 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1479#L672 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1321#L683 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1478#L693 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1416#L704 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1413#L714 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1411#L725 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1412#L735 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1410#L746 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1620#L756 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1474#L767 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1559#L777 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1524#L788 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1520#L798 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1363#L809 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1359#L819 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1354#L830 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1355#L840 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1351#L851 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1455#L861 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1454#L872 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1580#L882 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1496#L893 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1494#L903 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1386#L914 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1492#L924 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1432#L935 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1429#L945 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1371#L945-1 init_#res := init_~tmp___23~0; 1434#L1114 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; 1626#L68 assume !(0 == assume_abort_if_not_~cond); 1601#L67 ~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; 1602#L1251-2 [2020-10-19 20:14:14,742 INFO L796 eck$LassoCheckResult]: Loop: 1602#L1251-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_#t~ite8, node1_#t~ite9; 1628#L156 assume !(0 != ~mode1~0 % 256); 1627#L188 assume ~r1~0 < 3; 1625#L189 assume !(0 != ~ep12~0 % 256); 1610#L189-2 assume !(0 != ~ep13~0 % 256); 1483#L192-1 assume !(0 != ~ep14~0 % 256); 1467#L188-1 ~mode1~0 := 1; 1588#L156-2 havoc node2_#t~ite10, node2_#t~ite11, node2_#t~ite12; 1510#L209 assume !(0 != ~mode2~0 % 256); 1332#L241 assume !(~r2~0 < 3); 1326#L241-1 ~mode2~0 := 1; 1327#L209-2 havoc node3_#t~ite13, node3_#t~ite14, node3_#t~ite15; 1672#L262 assume !(0 != ~mode3~0 % 256); 1622#L294 assume !(~r3~0 < 3); 1551#L294-1 ~mode3~0 := 1; 1657#L262-2 havoc node4_#t~ite16, node4_#t~ite17, node4_#t~ite18; 1650#L315 assume !(0 != ~mode4~0 % 256); 1646#L347 assume !(~r4~0 < 3); 1641#L347-1 ~mode4~0 := 1; 1640#L315-2 ~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; 1639#L1122 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1638#L1123 assume ~st1~0 + ~nl1~0 <= 1; 1637#L1124 assume ~st2~0 + ~nl2~0 <= 1; 1636#L1125 assume ~st3~0 + ~nl3~0 <= 1; 1635#L1126 assume ~st4~0 + ~nl4~0 <= 1; 1634#L1127 assume !(~r1~0 >= 3); 1577#L1130 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1578#L1131 assume ~r1~0 < 3; 1633#L1136 assume !(~r1~0 >= 3); 1605#L1140 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1606#L1141 assume ~r1~0 < 3;check_~tmp~1 := 1; 1632#L1122-1 check_#res := check_~tmp~1; 1631#L1174 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; 1630#L1294 assume !(0 == assert_~arg % 256); 1629#L1289 main_#t~post61 := main_~i2~0;main_~i2~0 := 1 + main_#t~post61;havoc main_#t~post61; 1602#L1251-2 [2020-10-19 20:14:14,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:14,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2020-10-19 20:14:14,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:14:14,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30116677] [2020-10-19 20:14:14,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:14:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:14,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:14:14,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30116677] [2020-10-19 20:14:14,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:14:14,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 20:14:14,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455340882] [2020-10-19 20:14:14,885 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:14:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1683797404, now seen corresponding path program 1 times [2020-10-19 20:14:14,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:14:14,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103153762] [2020-10-19 20:14:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:14:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:14:14,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:14:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:14:14,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:14:14,960 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:14:15,567 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2020-10-19 20:14:16,033 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-10-19 20:14:16,047 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:14:16,048 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:14:16,048 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:14:16,049 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:14:16,049 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 20:14:16,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:16,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:14:16,049 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:14:16,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-10-19 20:14:16,050 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:14:16,050 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:14:16,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:16,688 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-19 20:14:17,075 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-19 20:14:17,142 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:14:17,143 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:17,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:14:17,152 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:17,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 20:14:17,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:14:17,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 20:14:17,292 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:14:17,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:14:17,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:14:17,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:14:17,293 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:14:17,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:17,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:14:17,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:14:17,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-10-19 20:14:17,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:14:17,294 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:14:17,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:14:17,857 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-19 20:14:18,340 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-19 20:14:18,470 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:14:18,476 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:18,488 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 [2020-10-19 20:14:18,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,497 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,497 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:18,544 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 [2020-10-19 20:14:18,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:14:18,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:14:18,556 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:14:18,604 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 [2020-10-19 20:14:18,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,655 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 [2020-10-19 20:14:18,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:18,692 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 [2020-10-19 20:14:18,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,721 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 [2020-10-19 20:14:18,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:14:18,763 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:18,798 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 [2020-10-19 20:14:18,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:18,824 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 [2020-10-19 20:14:18,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 20:14:18,850 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 [2020-10-19 20:14:18,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:14:18,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:14:18,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,893 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 [2020-10-19 20:14:18,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:14:18,945 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 [2020-10-19 20:14:18,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:14:18,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:18,982 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 [2020-10-19 20:14:18,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:18,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:18,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:18,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:18,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:18,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:18,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:18,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,008 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 [2020-10-19 20:14:19,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:14:19,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:14:19,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,057 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 [2020-10-19 20:14:19,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:19,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:19,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:19,075 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:14:19,102 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:14:19,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:14:19,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,131 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 [2020-10-19 20:14:19,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:19,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:19,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:19,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,160 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 [2020-10-19 20:14:19,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:19,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:19,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:19,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,187 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 [2020-10-19 20:14:19,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:19,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:19,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:19,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,214 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 [2020-10-19 20:14:19,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:14:19,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:14:19,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:14:19,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:14:19,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:14:19,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:14:19,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:14:19,219 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:14:19,229 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 20:14:19,229 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:14:19,234 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:14:19,234 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 20:14:19,234 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:14:19,235 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:14:19,269 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 20:14:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:14:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:19,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:14:19,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:14:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:14:19,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:14:19,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:14:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:14:19,555 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 [2020-10-19 20:14:19,556 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 382 states and 661 transitions. cyclomatic complexity: 280 Second operand 3 states. [2020-10-19 20:14:19,687 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 382 states and 661 transitions. cyclomatic complexity: 280. Second operand 3 states. Result 571 states and 968 transitions. Complement of second has 4 states. [2020-10-19 20:14:19,687 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 [2020-10-19 20:14:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:14:19,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2020-10-19 20:14:19,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 35 letters. [2020-10-19 20:14:19,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:14:19,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 90 letters. Loop has 35 letters. [2020-10-19 20:14:19,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:14:19,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 528 transitions. Stem has 55 letters. Loop has 70 letters. [2020-10-19 20:14:19,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:14:19,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 571 states and 968 transitions. [2020-10-19 20:14:19,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:14:19,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 571 states to 0 states and 0 transitions. [2020-10-19 20:14:19,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:14:19,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:14:19,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:14:19,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:14:19,715 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:14:19,715 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:14:19,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:14:19,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 20:14:19,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 20:14:19,716 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-19 20:14:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:14:19,716 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 20:14:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 20:14:19,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 20:14:19,717 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:14:19,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 20:14:19,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:14:19,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:14:19,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:14:19,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:14:19,717 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:14:19,717 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:14:19,718 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:14:19,718 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:14:19,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:14:19,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:14:19,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:14:19,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:14:19 BoogieIcfgContainer [2020-10-19 20:14:19,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:14:19,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:14:19,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:14:19,737 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:14:19,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:14:13" (3/4) ... [2020-10-19 20:14:19,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:14:19,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:14:19,744 INFO L168 Benchmark]: Toolchain (without parser) took 8519.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 280.0 MB). Free memory was 954.6 MB in the beginning and 1.0 GB in the end (delta: -63.7 MB). Peak memory consumption was 216.2 MB. Max. memory is 11.5 GB. [2020-10-19 20:14:19,744 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:14:19,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -118.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-10-19 20:14:19,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:14:19,747 INFO L168 Benchmark]: Boogie Preprocessor took 65.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 20:14:19,752 INFO L168 Benchmark]: RCFGBuilder took 1299.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.5 MB in the end (delta: 107.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 11.5 GB. [2020-10-19 20:14:19,754 INFO L168 Benchmark]: BuchiAutomizer took 6307.58 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.1 MB). Free memory was 953.5 MB in the beginning and 1.0 GB in the end (delta: -64.8 MB). Peak memory consumption was 121.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:14:19,755 INFO L168 Benchmark]: Witness Printer took 4.96 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:14:19,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 739.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -118.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1299.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.5 MB in the end (delta: 107.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6307.58 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 186.1 MB). Free memory was 953.5 MB in the beginning and 1.0 GB in the end (delta: -64.8 MB). Peak memory consumption was 121.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.96 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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 6.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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 382 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1591 SDtfs, 644 SDslu, 2287 SDs, 0 SdLazy, 36 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital194 mio100 ax124 hnf104 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...