./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_lcr.8.1.ufo.UNBOUNDED.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 a3df27f87602fca8935d2269a873dfd3f1a5195383d477434680a0bc703d239a --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:49:42,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:49:42,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:49:43,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:49:43,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:49:43,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:49:43,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:49:43,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:49:43,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:49:43,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:49:43,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:49:43,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:49:43,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:49:43,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:49:43,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:49:43,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:49:43,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:49:43,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:49:43,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:49:43,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:49:43,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:49:43,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:49:43,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:49:43,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:49:43,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:49:43,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:49:43,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:49:43,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:49:43,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:49:43,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:49:43,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:49:43,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:49:43,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:49:43,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:49:43,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:49:43,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:49:43,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:49:43,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:49:43,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:49:43,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:49:43,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:49:43,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:49:43,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:49:43,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:49:43,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:49:43,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:49:43,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:49:43,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:49:43,122 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:49:43,122 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:49:43,122 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:49:43,122 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:49:43,123 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:49:43,123 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:49:43,124 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:49:43,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:49:43,124 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:49:43,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:49:43,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:49:43,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:49:43,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:49:43,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:49:43,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:49:43,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:49:43,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:49:43,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:49:43,126 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:49:43,126 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:49:43,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:49:43,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:49:43,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:49:43,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:49:43,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:49:43,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:49:43,128 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:49:43,128 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3df27f87602fca8935d2269a873dfd3f1a5195383d477434680a0bc703d239a [2021-12-14 23:49:43,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:49:43,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:49:43,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:49:43,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:49:43,372 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:49:43,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2021-12-14 23:49:43,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd30d7c3/7f2c4866bac5415a9f053ad77af6d329/FLAG42317d29e [2021-12-14 23:49:43,836 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:49:43,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2021-12-14 23:49:43,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd30d7c3/7f2c4866bac5415a9f053ad77af6d329/FLAG42317d29e [2021-12-14 23:49:43,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd30d7c3/7f2c4866bac5415a9f053ad77af6d329 [2021-12-14 23:49:43,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:49:43,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:49:43,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:49:43,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:49:43,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:49:43,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:49:43" (1/1) ... [2021-12-14 23:49:43,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7507c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:43, skipping insertion in model container [2021-12-14 23:49:43,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:49:43" (1/1) ... [2021-12-14 23:49:43,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:49:43,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:49:44,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c[26518,26531] [2021-12-14 23:49:44,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:49:44,176 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:49:44,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c[26518,26531] [2021-12-14 23:49:44,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:49:44,287 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:49:44,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44 WrapperNode [2021-12-14 23:49:44,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:49:44,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:49:44,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:49:44,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:49:44,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,351 INFO L137 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 497 [2021-12-14 23:49:44,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:49:44,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:49:44,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:49:44,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:49:44,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:49:44,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:49:44,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:49:44,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:49:44,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (1/1) ... [2021-12-14 23:49:44,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:49:44,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:49:44,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-14 23:49:44,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-14 23:49:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:49:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:49:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:49:44,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:49:44,566 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:49:44,568 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:49:45,008 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:49:45,014 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:49:45,015 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 23:49:45,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:49:45 BoogieIcfgContainer [2021-12-14 23:49:45,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:49:45,017 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:49:45,017 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:49:45,024 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:49:45,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:49:45,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:49:43" (1/3) ... [2021-12-14 23:49:45,025 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50fd5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:49:45, skipping insertion in model container [2021-12-14 23:49:45,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:49:45,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:49:44" (2/3) ... [2021-12-14 23:49:45,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50fd5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:49:45, skipping insertion in model container [2021-12-14 23:49:45,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:49:45,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:49:45" (3/3) ... [2021-12-14 23:49:45,028 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2021-12-14 23:49:45,086 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:49:45,086 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:49:45,086 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:49:45,087 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:49:45,087 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:49:45,087 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:49:45,087 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:49:45,088 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:49:45,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 148 states, 147 states have (on average 1.7551020408163265) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:45,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-12-14 23:49:45,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:49:45,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:49:45,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:49:45,173 INFO L843 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, 1, 1, 1] [2021-12-14 23:49:45,173 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:49:45,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 148 states, 147 states have (on average 1.7551020408163265) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:45,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2021-12-14 23:49:45,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:49:45,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:49:45,185 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:49:45,185 INFO L843 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, 1, 1, 1] [2021-12-14 23:49:45,192 INFO L791 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~ret45#1, main_#t~ret46#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode4~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode5~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~id6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~st6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~send6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode6~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode7~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~id8~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~st8~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~send8~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~mode8~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 83#L300true assume !(0 == ~r1~0 % 256);init_~tmp~0#1 := 0; 54#L300-1true init_#res#1 := init_~tmp~0#1; 22#L545true main_#t~ret45#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret45#1;havoc main_#t~ret45#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 48#L22true assume !(0 == assume_abort_if_not_~cond#1); 118#L21true assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 61#L635-2true [2021-12-14 23:49:45,198 INFO L793 eck$LassoCheckResult]: Loop: 61#L635-2true assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 130#L92true assume !(0 != ~mode1~0 % 256); 23#L111true assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite4#1 := ~send1~0; 119#L111-2true ~p1_new~0 := (if node1_#t~ite4#1 % 256 <= 127 then node1_#t~ite4#1 % 256 else node1_#t~ite4#1 % 256 - 256);havoc node1_#t~ite4#1;~mode1~0 := 1; 76#L92-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 24#L123true assume !(0 != ~mode2~0 % 256); 17#L136true assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 35#L136-2true ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 49#L123-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 32#L148true assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 101#L151true assume !(node3_~m3~0#1 != ~nomsg~0); 38#L151-1true ~mode3~0 := 0; 44#L148-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 66#L173true assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 51#L176true assume !(node4_~m4~0#1 != ~nomsg~0); 27#L176-1true ~mode4~0 := 0; 147#L173-2true assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 88#L198true assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 78#L201true assume !(node5_~m5~0#1 != ~nomsg~0); 115#L201-1true ~mode5~0 := 0; 94#L198-2true assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 81#L223true assume !(0 != ~mode6~0 % 256); 73#L236true assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite9#1 := ~send6~0; 72#L236-2true ~p6_new~0 := (if node6_#t~ite9#1 % 256 <= 127 then node6_#t~ite9#1 % 256 else node6_#t~ite9#1 % 256 - 256);havoc node6_#t~ite9#1;~mode6~0 := 1; 63#L223-2true assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 146#L248true assume !(0 != ~mode7~0 % 256); 149#L261true assume ~send7~0 != ~nomsg~0 && ~p7_new~0 == ~nomsg~0;node7_#t~ite10#1 := ~send7~0; 57#L261-2true ~p7_new~0 := (if node7_#t~ite10#1 % 256 <= 127 then node7_#t~ite10#1 % 256 else node7_#t~ite10#1 % 256 - 256);havoc node7_#t~ite10#1;~mode7~0 := 1; 40#L248-2true assume { :end_inline_node7 } true;assume { :begin_inline_node8 } true;havoc node8_#t~ite11#1, node8_~m8~0#1;havoc node8_~m8~0#1;node8_~m8~0#1 := ~nomsg~0; 74#L273true assume 0 != ~mode8~0 % 256;node8_~m8~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 5#L276true assume !(node8_~m8~0#1 != ~nomsg~0); 45#L276-1true ~mode8~0 := 0; 129#L273-2true assume { :end_inline_node8 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 95#L553true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1);check_~tmp~1#1 := 0; 111#L553-1true check_#res#1 := check_~tmp~1#1; 64#L573true main_#t~ret46#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret46#1;havoc main_#t~ret46#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 28#L673true assume !(0 == assert_~arg#1 % 256); 36#L668true assume { :end_inline_assert } true; 61#L635-2true [2021-12-14 23:49:45,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:45,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2144605008, now seen corresponding path program 1 times [2021-12-14 23:49:45,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:45,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778929863] [2021-12-14 23:49:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:45,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:49:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:49:45,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:49:45,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778929863] [2021-12-14 23:49:45,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778929863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:49:45,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:49:45,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:49:45,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673964481] [2021-12-14 23:49:45,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:49:45,496 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:49:45,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:45,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1125075432, now seen corresponding path program 1 times [2021-12-14 23:49:45,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:45,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494306615] [2021-12-14 23:49:45,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:45,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:49:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:49:45,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:49:45,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494306615] [2021-12-14 23:49:45,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494306615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:49:45,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:49:45,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:49:45,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384319495] [2021-12-14 23:49:45,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:49:45,680 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:49:45,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:49:45,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:49:45,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:49:45,714 INFO L87 Difference]: Start difference. First operand has 148 states, 147 states have (on average 1.7551020408163265) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:45,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:49:45,852 INFO L93 Difference]: Finished difference Result 147 states and 253 transitions. [2021-12-14 23:49:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 23:49:45,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 253 transitions. [2021-12-14 23:49:45,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-12-14 23:49:45,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 143 states and 189 transitions. [2021-12-14 23:49:45,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2021-12-14 23:49:45,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2021-12-14 23:49:45,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 189 transitions. [2021-12-14 23:49:45,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:49:45,879 INFO L681 BuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2021-12-14 23:49:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states and 189 transitions. [2021-12-14 23:49:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-12-14 23:49:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.3216783216783217) internal successors, (189), 142 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 189 transitions. [2021-12-14 23:49:45,907 INFO L704 BuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2021-12-14 23:49:45,907 INFO L587 BuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2021-12-14 23:49:45,907 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:49:45,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 189 transitions. [2021-12-14 23:49:45,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-12-14 23:49:45,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:49:45,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:49:45,912 INFO L842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:49:45,914 INFO L843 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, 1, 1, 1] [2021-12-14 23:49:45,914 INFO L791 eck$LassoCheckResult]: Stem: 451#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 382#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~ret45#1, main_#t~ret46#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode4~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode5~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~id6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~st6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~send6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode6~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode7~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~id8~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~st8~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~send8~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~mode8~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 383#L300 assume 0 == ~r1~0 % 256; 421#L301 assume ~id1~0 >= 0; 439#L302 assume 0 == ~st1~0; 440#L303 assume ~send1~0 == ~id1~0; 447#L304 assume 0 == ~mode1~0 % 256; 413#L305 assume ~id2~0 >= 0; 414#L306 assume 0 == ~st2~0; 431#L307 assume ~send2~0 == ~id2~0; 333#L308 assume 0 == ~mode2~0 % 256; 334#L309 assume ~id3~0 >= 0; 427#L310 assume 0 == ~st3~0; 395#L311 assume ~send3~0 == ~id3~0; 396#L312 assume 0 == ~mode3~0 % 256; 355#L313 assume ~id4~0 >= 0; 356#L314 assume 0 == ~st4~0; 388#L315 assume ~send4~0 == ~id4~0; 389#L316 assume 0 == ~mode4~0 % 256; 320#L317 assume ~id5~0 >= 0; 321#L318 assume 0 == ~st5~0; 452#L319 assume ~send5~0 == ~id5~0; 438#L320 assume 0 == ~mode5~0 % 256; 418#L321 assume ~id6~0 >= 0; 419#L322 assume 0 == ~st6~0; 318#L323 assume ~send6~0 == ~id6~0; 319#L324 assume 0 == ~mode6~0 % 256; 338#L325 assume ~id7~0 >= 0; 360#L326 assume 0 == ~st7~0; 345#L327 assume ~send7~0 == ~id7~0; 346#L328 assume 0 == ~mode7~0 % 256; 373#L329 assume ~id8~0 >= 0; 374#L330 assume 0 == ~st8~0; 328#L331 assume ~send8~0 == ~id8~0; 329#L332 assume 0 == ~mode8~0 % 256; 359#L333 assume ~id1~0 != ~id2~0; 371#L334 assume ~id1~0 != ~id3~0; 353#L335 assume ~id1~0 != ~id4~0; 354#L336 assume ~id1~0 != ~id5~0; 430#L337 assume ~id1~0 != ~id6~0; 399#L338 assume ~id1~0 != ~id7~0; 400#L339 assume ~id1~0 != ~id8~0; 449#L340 assume ~id2~0 != ~id3~0; 444#L341 assume ~id2~0 != ~id4~0; 375#L342 assume ~id2~0 != ~id5~0; 376#L343 assume ~id2~0 != ~id6~0; 364#L344 assume ~id2~0 != ~id7~0; 365#L345 assume ~id2~0 != ~id8~0; 390#L346 assume ~id3~0 != ~id4~0; 391#L347 assume ~id3~0 != ~id5~0; 450#L348 assume ~id3~0 != ~id6~0; 442#L349 assume ~id3~0 != ~id7~0; 443#L350 assume ~id3~0 != ~id8~0; 422#L351 assume ~id4~0 != ~id5~0; 423#L352 assume ~id4~0 != ~id6~0; 446#L353 assume ~id4~0 != ~id7~0; 408#L354 assume ~id4~0 != ~id8~0; 377#L355 assume ~id5~0 != ~id6~0; 378#L356 assume ~id5~0 != ~id7~0; 405#L357 assume ~id5~0 != ~id8~0; 336#L358 assume ~id6~0 != ~id7~0; 337#L359 assume ~id6~0 != ~id8~0; 341#L360 assume ~id7~0 != ~id8~0;init_~tmp~0#1 := 1; 342#L300-1 init_#res#1 := init_~tmp~0#1; 347#L545 main_#t~ret45#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret45#1;havoc main_#t~ret45#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 348#L22 assume !(0 == assume_abort_if_not_~cond#1); 385#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 370#L635-2 [2021-12-14 23:49:45,915 INFO L793 eck$LassoCheckResult]: Loop: 370#L635-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 401#L92 assume !(0 != ~mode1~0 % 256); 349#L111 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite4#1 := ~send1~0; 350#L111-2 ~p1_new~0 := (if node1_#t~ite4#1 % 256 <= 127 then node1_#t~ite4#1 % 256 else node1_#t~ite4#1 % 256 - 256);havoc node1_#t~ite4#1;~mode1~0 := 1; 393#L92-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 351#L123 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 352#L126 assume !(node2_~m2~0#1 != ~nomsg~0); 397#L126-1 ~mode2~0 := 0; 369#L123-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 362#L148 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 363#L151 assume !(node3_~m3~0#1 != ~nomsg~0); 367#L151-1 ~mode3~0 := 0; 323#L148-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 381#L173 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 386#L176 assume !(node4_~m4~0#1 != ~nomsg~0); 314#L176-1 ~mode4~0 := 0; 325#L173-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 425#L198 assume !(0 != ~mode5~0 % 256); 426#L211 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite8#1 := ~send5~0; 441#L211-2 ~p5_new~0 := (if node5_#t~ite8#1 % 256 <= 127 then node5_#t~ite8#1 % 256 else node5_#t~ite8#1 % 256 - 256);havoc node5_#t~ite8#1;~mode5~0 := 1; 432#L198-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 420#L223 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 330#L226 assume !(node6_~m6~0#1 != ~nomsg~0); 331#L226-1 ~mode6~0 := 0; 384#L223-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 402#L248 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 436#L251 assume !(node7_~m7~0#1 != ~nomsg~0); 344#L251-1 ~mode7~0 := 0; 361#L248-2 assume { :end_inline_node7 } true;assume { :begin_inline_node8 } true;havoc node8_#t~ite11#1, node8_~m8~0#1;havoc node8_~m8~0#1;node8_~m8~0#1 := ~nomsg~0; 372#L273 assume 0 != ~mode8~0 % 256;node8_~m8~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 315#L276 assume !(node8_~m8~0#1 != ~nomsg~0); 316#L276-1 ~mode8~0 := 0; 327#L273-2 assume { :end_inline_node8 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 433#L553 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1);check_~tmp~1#1 := 0; 435#L553-1 check_#res#1 := check_~tmp~1#1; 403#L573 main_#t~ret46#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret46#1;havoc main_#t~ret46#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 357#L673 assume !(0 == assert_~arg#1 % 256); 358#L668 assume { :end_inline_assert } true; 370#L635-2 [2021-12-14 23:49:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:45,924 INFO L85 PathProgramCache]: Analyzing trace with hash 354076320, now seen corresponding path program 1 times [2021-12-14 23:49:45,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:45,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136833732] [2021-12-14 23:49:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:45,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,009 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:49:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:49:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:46,117 INFO L85 PathProgramCache]: Analyzing trace with hash -805972740, now seen corresponding path program 1 times [2021-12-14 23:49:46,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:46,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454501832] [2021-12-14 23:49:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:46,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:49:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:49:46,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:49:46,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454501832] [2021-12-14 23:49:46,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454501832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:49:46,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:49:46,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:49:46,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64082333] [2021-12-14 23:49:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:49:46,223 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:49:46,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:49:46,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:49:46,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:49:46,225 INFO L87 Difference]: Start difference. First operand 143 states and 189 transitions. cyclomatic complexity: 47 Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:46,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:49:46,282 INFO L93 Difference]: Finished difference Result 146 states and 191 transitions. [2021-12-14 23:49:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 23:49:46,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 191 transitions. [2021-12-14 23:49:46,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-12-14 23:49:46,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 143 states and 186 transitions. [2021-12-14 23:49:46,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2021-12-14 23:49:46,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2021-12-14 23:49:46,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 186 transitions. [2021-12-14 23:49:46,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:49:46,290 INFO L681 BuchiCegarLoop]: Abstraction has 143 states and 186 transitions. [2021-12-14 23:49:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states and 186 transitions. [2021-12-14 23:49:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-12-14 23:49:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 186 transitions. [2021-12-14 23:49:46,299 INFO L704 BuchiCegarLoop]: Abstraction has 143 states and 186 transitions. [2021-12-14 23:49:46,299 INFO L587 BuchiCegarLoop]: Abstraction has 143 states and 186 transitions. [2021-12-14 23:49:46,299 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:49:46,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 186 transitions. [2021-12-14 23:49:46,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-12-14 23:49:46,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:49:46,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:49:46,305 INFO L842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:49:46,307 INFO L843 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, 1, 1, 1, 1, 1] [2021-12-14 23:49:46,307 INFO L791 eck$LassoCheckResult]: Stem: 752#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 683#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~ret45#1, main_#t~ret46#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode4~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode5~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~id6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~st6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~send6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode6~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode7~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~id8~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~st8~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~send8~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~mode8~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 684#L300 assume 0 == ~r1~0 % 256; 722#L301 assume ~id1~0 >= 0; 740#L302 assume 0 == ~st1~0; 741#L303 assume ~send1~0 == ~id1~0; 749#L304 assume 0 == ~mode1~0 % 256; 714#L305 assume ~id2~0 >= 0; 715#L306 assume 0 == ~st2~0; 732#L307 assume ~send2~0 == ~id2~0; 634#L308 assume 0 == ~mode2~0 % 256; 635#L309 assume ~id3~0 >= 0; 728#L310 assume 0 == ~st3~0; 696#L311 assume ~send3~0 == ~id3~0; 697#L312 assume 0 == ~mode3~0 % 256; 656#L313 assume ~id4~0 >= 0; 657#L314 assume 0 == ~st4~0; 689#L315 assume ~send4~0 == ~id4~0; 690#L316 assume 0 == ~mode4~0 % 256; 621#L317 assume ~id5~0 >= 0; 622#L318 assume 0 == ~st5~0; 753#L319 assume ~send5~0 == ~id5~0; 739#L320 assume 0 == ~mode5~0 % 256; 719#L321 assume ~id6~0 >= 0; 720#L322 assume 0 == ~st6~0; 619#L323 assume ~send6~0 == ~id6~0; 620#L324 assume 0 == ~mode6~0 % 256; 641#L325 assume ~id7~0 >= 0; 661#L326 assume 0 == ~st7~0; 646#L327 assume ~send7~0 == ~id7~0; 647#L328 assume 0 == ~mode7~0 % 256; 674#L329 assume ~id8~0 >= 0; 675#L330 assume 0 == ~st8~0; 629#L331 assume ~send8~0 == ~id8~0; 630#L332 assume 0 == ~mode8~0 % 256; 660#L333 assume ~id1~0 != ~id2~0; 672#L334 assume ~id1~0 != ~id3~0; 654#L335 assume ~id1~0 != ~id4~0; 655#L336 assume ~id1~0 != ~id5~0; 731#L337 assume ~id1~0 != ~id6~0; 701#L338 assume ~id1~0 != ~id7~0; 702#L339 assume ~id1~0 != ~id8~0; 750#L340 assume ~id2~0 != ~id3~0; 745#L341 assume ~id2~0 != ~id4~0; 676#L342 assume ~id2~0 != ~id5~0; 677#L343 assume ~id2~0 != ~id6~0; 665#L344 assume ~id2~0 != ~id7~0; 666#L345 assume ~id2~0 != ~id8~0; 691#L346 assume ~id3~0 != ~id4~0; 692#L347 assume ~id3~0 != ~id5~0; 751#L348 assume ~id3~0 != ~id6~0; 743#L349 assume ~id3~0 != ~id7~0; 744#L350 assume ~id3~0 != ~id8~0; 723#L351 assume ~id4~0 != ~id5~0; 724#L352 assume ~id4~0 != ~id6~0; 747#L353 assume ~id4~0 != ~id7~0; 709#L354 assume ~id4~0 != ~id8~0; 678#L355 assume ~id5~0 != ~id6~0; 679#L356 assume ~id5~0 != ~id7~0; 705#L357 assume ~id5~0 != ~id8~0; 637#L358 assume ~id6~0 != ~id7~0; 638#L359 assume ~id6~0 != ~id8~0; 642#L360 assume ~id7~0 != ~id8~0;init_~tmp~0#1 := 1; 643#L300-1 init_#res#1 := init_~tmp~0#1; 648#L545 main_#t~ret45#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret45#1;havoc main_#t~ret45#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 649#L22 assume !(0 == assume_abort_if_not_~cond#1); 686#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 671#L635-2 [2021-12-14 23:49:46,308 INFO L793 eck$LassoCheckResult]: Loop: 671#L635-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 700#L92 assume !(0 != ~mode1~0 % 256); 650#L111 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite4#1 := ~send1~0; 651#L111-2 ~p1_new~0 := (if node1_#t~ite4#1 % 256 <= 127 then node1_#t~ite4#1 % 256 else node1_#t~ite4#1 % 256 - 256);havoc node1_#t~ite4#1;~mode1~0 := 1; 694#L92-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 652#L123 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 653#L126 assume !(node2_~m2~0#1 != ~nomsg~0); 698#L126-1 ~mode2~0 := 0; 670#L123-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 663#L148 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 664#L151 assume !(node3_~m3~0#1 != ~nomsg~0); 668#L151-1 ~mode3~0 := 0; 624#L148-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 682#L173 assume !(0 != ~mode4~0 % 256); 706#L186 assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite7#1 := ~send4~0; 625#L186-2 ~p4_new~0 := (if node4_#t~ite7#1 % 256 <= 127 then node4_#t~ite7#1 % 256 else node4_#t~ite7#1 % 256 - 256);havoc node4_#t~ite7#1;~mode4~0 := 1; 626#L173-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 726#L198 assume !(0 != ~mode5~0 % 256); 727#L211 assume ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0;node5_#t~ite8#1 := ~send5~0; 742#L211-2 ~p5_new~0 := (if node5_#t~ite8#1 % 256 <= 127 then node5_#t~ite8#1 % 256 else node5_#t~ite8#1 % 256 - 256);havoc node5_#t~ite8#1;~mode5~0 := 1; 733#L198-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 721#L223 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 631#L226 assume !(node6_~m6~0#1 != ~nomsg~0); 632#L226-1 ~mode6~0 := 0; 685#L223-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 703#L248 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 736#L251 assume !(node7_~m7~0#1 != ~nomsg~0); 645#L251-1 ~mode7~0 := 0; 662#L248-2 assume { :end_inline_node7 } true;assume { :begin_inline_node8 } true;havoc node8_#t~ite11#1, node8_~m8~0#1;havoc node8_~m8~0#1;node8_~m8~0#1 := ~nomsg~0; 673#L273 assume 0 != ~mode8~0 % 256;node8_~m8~0#1 := ~p7_old~0;~p7_old~0 := ~nomsg~0; 616#L276 assume !(node8_~m8~0#1 != ~nomsg~0); 617#L276-1 ~mode8~0 := 0; 628#L273-2 assume { :end_inline_node8 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 734#L553 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1; 735#L554 assume ~r1~0 % 256 >= 8; 754#L558 assume ~r1~0 % 256 < 8;check_~tmp~1#1 := 1; 738#L553-1 check_#res#1 := check_~tmp~1#1; 704#L573 main_#t~ret46#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret46#1;havoc main_#t~ret46#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 658#L673 assume !(0 == assert_~arg#1 % 256); 659#L668 assume { :end_inline_assert } true; 671#L635-2 [2021-12-14 23:49:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:46,309 INFO L85 PathProgramCache]: Analyzing trace with hash 354076320, now seen corresponding path program 2 times [2021-12-14 23:49:46,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:46,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137288876] [2021-12-14 23:49:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:46,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:49:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:49:46,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:46,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2106964446, now seen corresponding path program 1 times [2021-12-14 23:49:46,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:46,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637581688] [2021-12-14 23:49:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:46,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:49:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:49:46,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:49:46,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637581688] [2021-12-14 23:49:46,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637581688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:49:46,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:49:46,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:49:46,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573324806] [2021-12-14 23:49:46,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:49:46,475 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:49:46,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:49:46,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:49:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:49:46,478 INFO L87 Difference]: Start difference. First operand 143 states and 186 transitions. cyclomatic complexity: 44 Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:49:46,525 INFO L93 Difference]: Finished difference Result 213 states and 294 transitions. [2021-12-14 23:49:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:49:46,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 294 transitions. [2021-12-14 23:49:46,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 146 [2021-12-14 23:49:46,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 213 states and 294 transitions. [2021-12-14 23:49:46,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 213 [2021-12-14 23:49:46,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2021-12-14 23:49:46,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 213 states and 294 transitions. [2021-12-14 23:49:46,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:49:46,536 INFO L681 BuchiCegarLoop]: Abstraction has 213 states and 294 transitions. [2021-12-14 23:49:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states and 294 transitions. [2021-12-14 23:49:46,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 211. [2021-12-14 23:49:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3791469194312795) internal successors, (291), 210 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:49:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2021-12-14 23:49:46,552 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-12-14 23:49:46,552 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-12-14 23:49:46,552 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:49:46,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2021-12-14 23:49:46,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 144 [2021-12-14 23:49:46,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:49:46,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:49:46,556 INFO L842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:49:46,556 INFO L843 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, 1, 1, 1, 1, 1, 1] [2021-12-14 23:49:46,558 INFO L791 eck$LassoCheckResult]: Stem: 1117#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(34, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~p7~0 := 0;~p7_old~0 := 0;~p7_new~0 := 0;~id7~0 := 0;~st7~0 := 0;~send7~0 := 0;~mode7~0 := 0;~p8~0 := 0;~p8_old~0 := 0;~p8_new~0 := 0;~id8~0 := 0;~st8~0 := 0;~send8~0 := 0;~mode8~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[4 := #funAddr~node5.base], ~nodes~0.offset[4 := #funAddr~node5.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[5 := #funAddr~node6.base], ~nodes~0.offset[5 := #funAddr~node6.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[6 := #funAddr~node7.base], ~nodes~0.offset[6 := #funAddr~node7.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[7 := #funAddr~node8.base], ~nodes~0.offset[7 := #funAddr~node8.offset]; 1045#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~ret45#1, main_#t~ret46#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~r1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~id1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~st1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~send1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~id3~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~st3~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~send3~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~id4~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st4~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~send4~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~mode4~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~id5~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~st5~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~send5~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode5~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~id6~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~st6~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~send6~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode6~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id7~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st7~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send7~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode7~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~id8~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~st8~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~send8~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~mode8~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 1046#L300 assume 0 == ~r1~0 % 256; 1085#L301 assume ~id1~0 >= 0; 1103#L302 assume 0 == ~st1~0; 1104#L303 assume ~send1~0 == ~id1~0; 1112#L304 assume 0 == ~mode1~0 % 256; 1076#L305 assume ~id2~0 >= 0; 1077#L306 assume 0 == ~st2~0; 1095#L307 assume ~send2~0 == ~id2~0; 993#L308 assume 0 == ~mode2~0 % 256; 994#L309 assume ~id3~0 >= 0; 1091#L310 assume 0 == ~st3~0; 1057#L311 assume ~send3~0 == ~id3~0; 1058#L312 assume 0 == ~mode3~0 % 256; 1018#L313 assume ~id4~0 >= 0; 1019#L314 assume 0 == ~st4~0; 1049#L315 assume ~send4~0 == ~id4~0; 1050#L316 assume 0 == ~mode4~0 % 256; 983#L317 assume ~id5~0 >= 0; 984#L318 assume 0 == ~st5~0; 1118#L319 assume ~send5~0 == ~id5~0; 1100#L320 assume 0 == ~mode5~0 % 256; 1082#L321 assume ~id6~0 >= 0; 1083#L322 assume 0 == ~st6~0; 981#L323 assume ~send6~0 == ~id6~0; 982#L324 assume 0 == ~mode6~0 % 256; 1001#L325 assume ~id7~0 >= 0; 1023#L326 assume 0 == ~st7~0; 1008#L327 assume ~send7~0 == ~id7~0; 1009#L328 assume 0 == ~mode7~0 % 256; 1035#L329 assume ~id8~0 >= 0; 1036#L330 assume 0 == ~st8~0; 989#L331 assume ~send8~0 == ~id8~0; 990#L332 assume 0 == ~mode8~0 % 256; 1022#L333 assume ~id1~0 != ~id2~0; 1034#L334 assume ~id1~0 != ~id3~0; 1016#L335 assume ~id1~0 != ~id4~0; 1017#L336 assume ~id1~0 != ~id5~0; 1094#L337 assume ~id1~0 != ~id6~0; 1062#L338 assume ~id1~0 != ~id7~0; 1063#L339 assume ~id1~0 != ~id8~0; 1114#L340 assume ~id2~0 != ~id3~0; 1108#L341 assume ~id2~0 != ~id4~0; 1037#L342 assume ~id2~0 != ~id5~0; 1038#L343 assume ~id2~0 != ~id6~0; 1027#L344 assume ~id2~0 != ~id7~0; 1028#L345 assume ~id2~0 != ~id8~0; 1053#L346 assume ~id3~0 != ~id4~0; 1054#L347 assume ~id3~0 != ~id5~0; 1116#L348 assume ~id3~0 != ~id6~0; 1106#L349 assume ~id3~0 != ~id7~0; 1107#L350 assume ~id3~0 != ~id8~0; 1086#L351 assume ~id4~0 != ~id5~0; 1087#L352 assume ~id4~0 != ~id6~0; 1110#L353 assume ~id4~0 != ~id7~0; 1071#L354 assume ~id4~0 != ~id8~0; 1040#L355 assume ~id5~0 != ~id6~0; 1041#L356 assume ~id5~0 != ~id7~0; 1067#L357 assume ~id5~0 != ~id8~0; 999#L358 assume ~id6~0 != ~id7~0; 1000#L359 assume ~id6~0 != ~id8~0; 1004#L360 assume ~id7~0 != ~id8~0;init_~tmp~0#1 := 1; 1005#L300-1 init_#res#1 := init_~tmp~0#1; 1010#L545 main_#t~ret45#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret45#1;havoc main_#t~ret45#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; 1011#L22 assume !(0 == assume_abort_if_not_~cond#1); 1048#L21 assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~nomsg~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~nomsg~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~nomsg~0;~p8_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 1111#L635-2 [2021-12-14 23:49:46,558 INFO L793 eck$LassoCheckResult]: Loop: 1111#L635-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 1182#L92 assume !(0 != ~mode1~0 % 256); 1181#L111 assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite4#1 := ~send1~0; 1180#L111-2 ~p1_new~0 := (if node1_#t~ite4#1 % 256 <= 127 then node1_#t~ite4#1 % 256 else node1_#t~ite4#1 % 256 - 256);havoc node1_#t~ite4#1;~mode1~0 := 1; 1056#L92-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite5#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 1179#L123 assume !(0 != ~mode2~0 % 256); 1175#L136 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite5#1 := ~send2~0; 1174#L136-2 ~p2_new~0 := (if node2_#t~ite5#1 % 256 <= 127 then node2_#t~ite5#1 % 256 else node2_#t~ite5#1 % 256 - 256);havoc node2_#t~ite5#1;~mode2~0 := 1; 1172#L123-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite6#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 1171#L148 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 1170#L151 assume !(node3_~m3~0#1 != ~nomsg~0); 1165#L151-1 ~mode3~0 := 0; 1164#L148-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite7#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 1163#L173 assume !(0 != ~mode4~0 % 256); 1159#L186 assume ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0;node4_#t~ite7#1 := ~send4~0; 1158#L186-2 ~p4_new~0 := (if node4_#t~ite7#1 % 256 <= 127 then node4_#t~ite7#1 % 256 else node4_#t~ite7#1 % 256 - 256);havoc node4_#t~ite7#1;~mode4~0 := 1; 1156#L173-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite8#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 1155#L198 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 1152#L201 assume !(node5_~m5~0#1 != ~nomsg~0); 1149#L201-1 ~mode5~0 := 0; 1148#L198-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite9#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 1147#L223 assume !(0 != ~mode6~0 % 256); 1143#L236 assume ~send6~0 != ~nomsg~0 && ~p6_new~0 == ~nomsg~0;node6_#t~ite9#1 := ~send6~0; 1142#L236-2 ~p6_new~0 := (if node6_#t~ite9#1 % 256 <= 127 then node6_#t~ite9#1 % 256 else node6_#t~ite9#1 % 256 - 256);havoc node6_#t~ite9#1;~mode6~0 := 1; 1140#L223-2 assume { :end_inline_node6 } true;assume { :begin_inline_node7 } true;havoc node7_#t~ite10#1, node7_~m7~0#1;havoc node7_~m7~0#1;node7_~m7~0#1 := ~nomsg~0; 1139#L248 assume 0 != ~mode7~0 % 256;node7_~m7~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 1137#L251 assume !(node7_~m7~0#1 != ~nomsg~0); 1133#L251-1 ~mode7~0 := 0; 1132#L248-2 assume { :end_inline_node7 } true;assume { :begin_inline_node8 } true;havoc node8_#t~ite11#1, node8_~m8~0#1;havoc node8_~m8~0#1;node8_~m8~0#1 := ~nomsg~0; 1131#L273 assume !(0 != ~mode8~0 % 256); 1127#L286 assume ~send8~0 != ~nomsg~0 && ~p8_new~0 == ~nomsg~0;node8_#t~ite11#1 := ~send8~0; 1126#L286-2 ~p8_new~0 := (if node8_#t~ite11#1 % 256 <= 127 then node8_#t~ite11#1 % 256 else node8_#t~ite11#1 % 256 - 256);havoc node8_#t~ite11#1;~mode8~0 := 1; 1115#L273-2 assume { :end_inline_node8 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;~p6_old~0 := ~p6_new~0;~p6_new~0 := ~nomsg~0;~p7_old~0 := ~p7_new~0;~p7_new~0 := ~nomsg~0;~p8_old~0 := ~p8_new~0;~p8_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 1097#L553 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0 <= 1; 1098#L554 assume !(~r1~0 % 256 >= 8); 1120#L557 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 + ~st7~0 + ~st8~0; 1121#L558 assume ~r1~0 % 256 < 8;check_~tmp~1#1 := 1; 1186#L553-1 check_#res#1 := check_~tmp~1#1; 1185#L573 main_#t~ret46#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret46#1;havoc main_#t~ret46#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1; 1184#L673 assume !(0 == assert_~arg#1 % 256); 1183#L668 assume { :end_inline_assert } true; 1111#L635-2 [2021-12-14 23:49:46,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:46,559 INFO L85 PathProgramCache]: Analyzing trace with hash 354076320, now seen corresponding path program 3 times [2021-12-14 23:49:46,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:46,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787345001] [2021-12-14 23:49:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:46,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:49:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:49:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1443497567, now seen corresponding path program 1 times [2021-12-14 23:49:46,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:46,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610767588] [2021-12-14 23:49:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:46,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:49:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:49:46,639 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:49:46,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:49:46,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2030957026, now seen corresponding path program 1 times [2021-12-14 23:49:46,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:49:46,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221613496] [2021-12-14 23:49:46,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:49:46,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:49:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:49:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:49:46,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:49:46,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221613496] [2021-12-14 23:49:46,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221613496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:49:46,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:49:46,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:49:46,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84659608] [2021-12-14 23:49:46,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:49:48,662 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:49:48,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:49:48,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:49:48,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:49:48,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-14 23:49:48,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:49:48,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:49:48,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:49:48,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.8.1.ufo.UNBOUNDED.pals.c_Iteration4_Loop [2021-12-14 23:49:48,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:49:48,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:49:48,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:48,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:48,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:48,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:48,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:48,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:49:49,815 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2021-12-14 23:49:51,138 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 32768 conjuctions. This might take some time...