./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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-var-start-time.6.1.ufo.BOUNDED-12.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 5cbdd74a230613e4bdaea53735767d2cb8a557f2fb27b4c6d6d20587e28e4a0f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:40:14,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:40:14,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:40:14,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:40:14,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:40:14,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:40:14,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:40:14,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:40:14,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:40:14,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:40:14,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:40:14,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:40:14,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:40:14,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:40:14,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:40:14,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:40:14,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:40:14,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:40:14,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:40:14,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:40:14,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:40:14,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:40:14,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:40:14,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:40:14,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:40:14,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:40:14,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:40:14,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:40:14,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:40:14,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:40:14,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:40:14,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:40:14,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:40:14,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:40:14,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:40:14,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:40:14,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:40:14,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:40:14,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:40:14,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:40:14,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:40:14,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:40:14,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:40:14,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:40:14,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:40:14,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:40:14,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:40:14,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:40:14,183 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:40:14,184 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:40:14,184 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:40:14,184 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:40:14,184 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:40:14,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:40:14,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:40:14,186 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:40:14,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:40:14,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:40:14,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:40:14,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:40:14,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:40:14,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:40:14,188 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:40:14,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cbdd74a230613e4bdaea53735767d2cb8a557f2fb27b4c6d6d20587e28e4a0f [2021-12-19 19:40:14,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:40:14,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:40:14,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:40:14,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:40:14,411 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:40:14,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2021-12-19 19:40:14,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc260b17/037724e0e01f488c9711aa826ade63fa/FLAG3a5774de8 [2021-12-19 19:40:14,759 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:40:14,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2021-12-19 19:40:14,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc260b17/037724e0e01f488c9711aa826ade63fa/FLAG3a5774de8 [2021-12-19 19:40:15,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc260b17/037724e0e01f488c9711aa826ade63fa [2021-12-19 19:40:15,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:40:15,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:40:15,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:40:15,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:40:15,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:40:15,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64474930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15, skipping insertion in model container [2021-12-19 19:40:15,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:40:15,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:40:15,377 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-var-start-time.6.1.ufo.BOUNDED-12.pals.c[16977,16990] [2021-12-19 19:40:15,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:40:15,384 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:40:15,423 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-var-start-time.6.1.ufo.BOUNDED-12.pals.c[16977,16990] [2021-12-19 19:40:15,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:40:15,440 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:40:15,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15 WrapperNode [2021-12-19 19:40:15,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:40:15,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:40:15,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:40:15,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:40:15,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,478 INFO L137 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 441 [2021-12-19 19:40:15,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:40:15,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:40:15,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:40:15,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:40:15,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:40:15,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:40:15,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:40:15,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:40:15,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (1/1) ... [2021-12-19 19:40:15,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:15,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:15,555 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) [2021-12-19 19:40:15,575 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 [2021-12-19 19:40:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:40:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:40:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:40:15,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:40:15,706 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:40:15,707 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:40:16,051 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:40:16,058 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:40:16,059 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 19:40:16,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:40:16 BoogieIcfgContainer [2021-12-19 19:40:16,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:40:16,061 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:40:16,061 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:40:16,065 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:40:16,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:40:16,065 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:40:15" (1/3) ... [2021-12-19 19:40:16,066 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4565cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:40:16, skipping insertion in model container [2021-12-19 19:40:16,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:40:16,067 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:40:15" (2/3) ... [2021-12-19 19:40:16,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4565cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:40:16, skipping insertion in model container [2021-12-19 19:40:16,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:40:16,067 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:40:16" (3/3) ... [2021-12-19 19:40:16,068 INFO L388 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c [2021-12-19 19:40:16,107 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:40:16,107 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:40:16,108 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:40:16,108 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:40:16,108 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:40:16,108 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:40:16,108 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:40:16,108 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:40:16,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 144 states, 143 states have (on average 1.7132867132867133) internal successors, (245), 143 states have internal predecessors, (245), 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) [2021-12-19 19:40:16,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2021-12-19 19:40:16,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:40:16,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:40:16,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:40:16,142 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] [2021-12-19 19:40:16,142 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:40:16,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 144 states, 143 states have (on average 1.7132867132867133) internal successors, (245), 143 states have internal predecessors, (245), 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) [2021-12-19 19:40:16,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2021-12-19 19:40:16,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:40:16,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:40:16,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:40:16,153 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] [2021-12-19 19:40:16,157 INFO L791 eck$LassoCheckResult]: Stem: 125#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(50, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc 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~nondet45#1, main_#t~nondet46#1, main_#t~ret47#1, main_#t~ret48#1, main_#t~post49#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~nondet16#1;havoc main_#t~nondet16#1;~id1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~alive1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~id2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~st2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~send2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~mode2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~alive2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~id3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~send3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~alive3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id4~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st4~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send4~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode4~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~alive4~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id5~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st5~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send5~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode5~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~alive5~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id6~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~st6~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~send6~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~mode6~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~alive6~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 134#L290true assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 122#L290-1true init_#res#1 := init_~tmp~0#1; 5#L455true main_#t~ret47#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret47#1;havoc main_#t~ret47#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; 43#L22true assume 0 == assume_abort_if_not_~cond#1;assume false; 103#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;main_~i2~0#1 := 0; 116#L531-2true [2021-12-19 19:40:16,158 INFO L793 eck$LassoCheckResult]: Loop: 116#L531-2true assume !!(main_~i2~0#1 < 12);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 123#L84true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 98#L88true assume !(node1_~m1~0#1 != ~nomsg~0); 119#L88-1true ~mode1~0 := 0; 25#L84-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_#t~ite7#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 26#L121true assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 82#L124true assume !(node2_~m2~0#1 != ~nomsg~0); 37#L124-1true ~mode2~0 := 0; 10#L121-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite8#1, node3_#t~ite9#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 48#L155true assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 16#L158true assume !(node3_~m3~0#1 != ~nomsg~0); 97#L158-1true ~mode3~0 := 0; 104#L155-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite10#1, node4_#t~ite11#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 89#L189true assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 99#L192true assume !(node4_~m4~0#1 != ~nomsg~0); 139#L192-1true ~mode4~0 := 0; 49#L189-2true assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite12#1, node5_#t~ite13#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 63#L223true assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 14#L226true assume !(node5_~m5~0#1 != ~nomsg~0); 42#L226-1true ~mode5~0 := 0; 54#L223-2true assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite14#1, node6_#t~ite15#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 129#L257true assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 64#L260true assume !(node6_~m6~0#1 != ~nomsg~0); 81#L260-1true ~mode6~0 := 0; 41#L257-2true assume { :end_inline_node6 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 39#L463true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1#1 := 0; 138#L463-1true check_#res#1 := check_~tmp~1#1; 71#L475true main_#t~ret48#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret48#1;havoc main_#t~ret48#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; 15#L564true assume !(0 == assert_~arg#1 % 256); 46#L559true assume { :end_inline_assert } true;main_#t~post49#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post49#1;havoc main_#t~post49#1; 116#L531-2true [2021-12-19 19:40:16,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2035845626, now seen corresponding path program 1 times [2021-12-19 19:40:16,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:16,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805240049] [2021-12-19 19:40:16,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:16,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:16,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:40:16,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805240049] [2021-12-19 19:40:16,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805240049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:40:16,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:40:16,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 19:40:16,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454811929] [2021-12-19 19:40:16,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:40:16,298 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-19 19:40:16,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash -373862285, now seen corresponding path program 1 times [2021-12-19 19:40:16,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:16,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775037012] [2021-12-19 19:40:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:16,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:16,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:40:16,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775037012] [2021-12-19 19:40:16,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775037012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:40:16,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:40:16,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:40:16,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912207974] [2021-12-19 19:40:16,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:40:16,441 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:40:16,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:40:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-19 19:40:16,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 19:40:16,467 INFO L87 Difference]: Start difference. First operand has 144 states, 143 states have (on average 1.7132867132867133) internal successors, (245), 143 states have internal predecessors, (245), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-12-19 19:40:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:40:16,486 INFO L93 Difference]: Finished difference Result 144 states and 242 transitions. [2021-12-19 19:40:16,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 19:40:16,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 242 transitions. [2021-12-19 19:40:16,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-12-19 19:40:16,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 139 states and 237 transitions. [2021-12-19 19:40:16,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2021-12-19 19:40:16,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-12-19 19:40:16,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 237 transitions. [2021-12-19 19:40:16,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:40:16,505 INFO L681 BuchiCegarLoop]: Abstraction has 139 states and 237 transitions. [2021-12-19 19:40:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 237 transitions. [2021-12-19 19:40:16,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-12-19 19:40:16,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.7050359712230216) internal successors, (237), 138 states have internal predecessors, (237), 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) [2021-12-19 19:40:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 237 transitions. [2021-12-19 19:40:16,528 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 237 transitions. [2021-12-19 19:40:16,528 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 237 transitions. [2021-12-19 19:40:16,528 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:40:16,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 237 transitions. [2021-12-19 19:40:16,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-12-19 19:40:16,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:40:16,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:40:16,531 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:40:16,531 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] [2021-12-19 19:40:16,531 INFO L791 eck$LassoCheckResult]: Stem: 435#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(50, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 368#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc 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~nondet45#1, main_#t~nondet46#1, main_#t~ret47#1, main_#t~ret48#1, main_#t~post49#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~nondet16#1;havoc main_#t~nondet16#1;~id1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~alive1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~id2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~st2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~send2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~mode2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~alive2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~id3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~send3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~alive3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id4~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st4~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send4~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode4~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~alive4~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id5~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st5~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send5~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode5~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~alive5~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id6~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~st6~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~send6~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~mode6~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~alive6~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 369#L290 assume !(0 == ~r1~0);init_~tmp~0#1 := 0; 302#L290-1 init_#res#1 := init_~tmp~0#1; 304#L455 main_#t~ret47#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret47#1;havoc main_#t~ret47#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; 305#L22 assume !(0 == assume_abort_if_not_~cond#1); 373#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;main_~i2~0#1 := 0; 374#L531-2 [2021-12-19 19:40:16,531 INFO L793 eck$LassoCheckResult]: Loop: 374#L531-2 assume !!(main_~i2~0#1 < 12);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 434#L84 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 428#L88 assume !(node1_~m1~0#1 != ~nomsg~0); 362#L88-1 ~mode1~0 := 0; 345#L84-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_#t~ite7#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 346#L121 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 348#L124 assume !(node2_~m2~0#1 != ~nomsg~0); 364#L124-1 ~mode2~0 := 0; 315#L121-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite8#1, node3_#t~ite9#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 316#L155 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 326#L158 assume !(node3_~m3~0#1 != ~nomsg~0); 328#L158-1 ~mode3~0 := 0; 409#L155-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite10#1, node4_#t~ite11#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 421#L189 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 422#L192 assume !(node4_~m4~0#1 != ~nomsg~0); 391#L192-1 ~mode4~0 := 0; 381#L189-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite12#1, node5_#t~ite13#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 382#L223 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 321#L226 assume !(node5_~m5~0#1 != ~nomsg~0); 323#L226-1 ~mode5~0 := 0; 372#L223-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite14#1, node6_#t~ite15#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 385#L257 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 399#L260 assume !(node6_~m6~0#1 != ~nomsg~0); 393#L260-1 ~mode6~0 := 0; 371#L257-2 assume { :end_inline_node6 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 365#L463 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1#1 := 0; 366#L463-1 check_#res#1 := check_~tmp~1#1; 406#L475 main_#t~ret48#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret48#1;havoc main_#t~ret48#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; 324#L564 assume !(0 == assert_~arg#1 % 256); 325#L559 assume { :end_inline_assert } true;main_#t~post49#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post49#1;havoc main_#t~post49#1; 374#L531-2 [2021-12-19 19:40:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash 2035845688, now seen corresponding path program 1 times [2021-12-19 19:40:16,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:16,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795136284] [2021-12-19 19:40:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:16,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:16,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:40:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795136284] [2021-12-19 19:40:16,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795136284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:40:16,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:40:16,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:40:16,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706278612] [2021-12-19 19:40:16,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:40:16,614 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-19 19:40:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:16,614 INFO L85 PathProgramCache]: Analyzing trace with hash -373862285, now seen corresponding path program 2 times [2021-12-19 19:40:16,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:16,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960891963] [2021-12-19 19:40:16,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:16,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:16,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:16,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:40:16,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960891963] [2021-12-19 19:40:16,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960891963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:40:16,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:40:16,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:40:16,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606151460] [2021-12-19 19:40:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:40:16,691 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:40:16,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:40:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:40:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:40:16,692 INFO L87 Difference]: Start difference. First operand 139 states and 237 transitions. cyclomatic complexity: 99 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) [2021-12-19 19:40:16,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:40:16,795 INFO L93 Difference]: Finished difference Result 142 states and 239 transitions. [2021-12-19 19:40:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:40:16,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 239 transitions. [2021-12-19 19:40:16,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-12-19 19:40:16,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 139 states and 196 transitions. [2021-12-19 19:40:16,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2021-12-19 19:40:16,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-12-19 19:40:16,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 196 transitions. [2021-12-19 19:40:16,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:40:16,799 INFO L681 BuchiCegarLoop]: Abstraction has 139 states and 196 transitions. [2021-12-19 19:40:16,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 196 transitions. [2021-12-19 19:40:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-12-19 19:40:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.410071942446043) internal successors, (196), 138 states have internal predecessors, (196), 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) [2021-12-19 19:40:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 196 transitions. [2021-12-19 19:40:16,803 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 196 transitions. [2021-12-19 19:40:16,803 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 196 transitions. [2021-12-19 19:40:16,803 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:40:16,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 196 transitions. [2021-12-19 19:40:16,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-12-19 19:40:16,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:40:16,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:40:16,805 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] [2021-12-19 19:40:16,805 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] [2021-12-19 19:40:16,806 INFO L791 eck$LassoCheckResult]: Stem: 731#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(50, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 663#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc 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~nondet45#1, main_#t~nondet46#1, main_#t~ret47#1, main_#t~ret48#1, main_#t~post49#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~nondet16#1;havoc main_#t~nondet16#1;~id1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~alive1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~id2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~st2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~send2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~mode2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~alive2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~id3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~send3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~alive3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id4~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st4~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send4~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode4~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~alive4~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id5~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st5~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send5~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode5~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~alive5~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id6~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~st6~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~send6~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~mode6~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~alive6~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 664#L290 assume 0 == ~r1~0; 709#L291 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 + ~alive5~0 % 256 + ~alive6~0 % 256 >= 1; 710#L292 assume ~id1~0 >= 0; 723#L293 assume 0 == ~st1~0; 729#L294 assume ~send1~0 == ~id1~0; 606#L295 assume 0 == ~mode1~0 % 256; 607#L296 assume ~id2~0 >= 0; 649#L297 assume 0 == ~st2~0; 647#L298 assume ~send2~0 == ~id2~0; 648#L299 assume 0 == ~mode2~0 % 256; 658#L300 assume ~id3~0 >= 0; 697#L301 assume 0 == ~st3~0; 714#L302 assume ~send3~0 == ~id3~0; 715#L303 assume 0 == ~mode3~0 % 256; 726#L304 assume ~id4~0 >= 0; 691#L305 assume 0 == ~st4~0; 692#L306 assume ~send4~0 == ~id4~0; 708#L307 assume 0 == ~mode4~0 % 256; 617#L308 assume ~id5~0 >= 0; 618#L309 assume 0 == ~st5~0; 704#L310 assume ~send5~0 == ~id5~0; 678#L311 assume 0 == ~mode5~0 % 256; 679#L312 assume ~id6~0 >= 0; 635#L313 assume 0 == ~st6~0; 636#L314 assume ~send6~0 == ~id6~0; 671#L315 assume 0 == ~mode6~0 % 256; 672#L316 assume ~id1~0 != ~id2~0; 604#L317 assume ~id1~0 != ~id3~0; 605#L318 assume ~id1~0 != ~id4~0; 732#L319 assume ~id1~0 != ~id5~0; 713#L320 assume ~id1~0 != ~id6~0; 693#L321 assume ~id2~0 != ~id3~0; 694#L322 assume ~id2~0 != ~id4~0; 600#L323 assume ~id2~0 != ~id5~0; 601#L324 assume ~id2~0 != ~id6~0; 624#L325 assume ~id3~0 != ~id4~0; 644#L326 assume ~id3~0 != ~id5~0; 631#L327 assume ~id3~0 != ~id6~0; 632#L328 assume ~id4~0 != ~id5~0; 654#L329 assume ~id4~0 != ~id6~0; 655#L330 assume ~id5~0 != ~id6~0;init_~tmp~0#1 := 1; 680#L290-1 init_#res#1 := init_~tmp~0#1; 602#L455 main_#t~ret47#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret47#1;havoc main_#t~ret47#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; 603#L22 assume !(0 == assume_abort_if_not_~cond#1); 668#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;main_~i2~0#1 := 0; 670#L531-2 [2021-12-19 19:40:16,806 INFO L793 eck$LassoCheckResult]: Loop: 670#L531-2 assume !!(main_~i2~0#1 < 12);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 730#L84 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 724#L88 assume !(node1_~m1~0#1 != ~nomsg~0); 657#L88-1 ~mode1~0 := 0; 640#L84-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_#t~ite7#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 641#L121 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 643#L124 assume !(node2_~m2~0#1 != ~nomsg~0); 659#L124-1 ~mode2~0 := 0; 608#L121-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite8#1, node3_#t~ite9#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 609#L155 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 621#L158 assume !(node3_~m3~0#1 != ~nomsg~0); 623#L158-1 ~mode3~0 := 0; 705#L155-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite10#1, node4_#t~ite11#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 717#L189 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 718#L192 assume !(node4_~m4~0#1 != ~nomsg~0); 687#L192-1 ~mode4~0 := 0; 676#L189-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite12#1, node5_#t~ite13#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 677#L223 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 614#L226 assume !(node5_~m5~0#1 != ~nomsg~0); 616#L226-1 ~mode5~0 := 0; 667#L223-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite14#1, node6_#t~ite15#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 682#L257 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 695#L260 assume !(node6_~m6~0#1 != ~nomsg~0); 689#L260-1 ~mode6~0 := 0; 666#L257-2 assume { :end_inline_node6 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 660#L463 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1);check_~tmp~1#1 := 0; 661#L463-1 check_#res#1 := check_~tmp~1#1; 702#L475 main_#t~ret48#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret48#1;havoc main_#t~ret48#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; 619#L564 assume !(0 == assert_~arg#1 % 256); 620#L559 assume { :end_inline_assert } true;main_#t~post49#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post49#1;havoc main_#t~post49#1; 670#L531-2 [2021-12-19 19:40:16,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1766357374, now seen corresponding path program 1 times [2021-12-19 19:40:16,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:16,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072519769] [2021-12-19 19:40:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:16,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:40:16,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:40:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:40:16,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:40:16,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:16,907 INFO L85 PathProgramCache]: Analyzing trace with hash -373862285, now seen corresponding path program 3 times [2021-12-19 19:40:16,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:16,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612207853] [2021-12-19 19:40:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:16,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:16,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:40:16,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612207853] [2021-12-19 19:40:16,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612207853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:40:16,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:40:16,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:40:16,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18407765] [2021-12-19 19:40:16,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:40:16,996 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:40:16,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:40:16,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:40:16,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:40:16,996 INFO L87 Difference]: Start difference. First operand 139 states and 196 transitions. cyclomatic complexity: 58 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:40:17,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:40:17,030 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2021-12-19 19:40:17,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:40:17,032 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2021-12-19 19:40:17,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-12-19 19:40:17,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 139 states and 194 transitions. [2021-12-19 19:40:17,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2021-12-19 19:40:17,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-12-19 19:40:17,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 194 transitions. [2021-12-19 19:40:17,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:40:17,044 INFO L681 BuchiCegarLoop]: Abstraction has 139 states and 194 transitions. [2021-12-19 19:40:17,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 194 transitions. [2021-12-19 19:40:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-12-19 19:40:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.39568345323741) internal successors, (194), 138 states have internal predecessors, (194), 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) [2021-12-19 19:40:17,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 194 transitions. [2021-12-19 19:40:17,049 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 194 transitions. [2021-12-19 19:40:17,049 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 194 transitions. [2021-12-19 19:40:17,049 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 19:40:17,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 194 transitions. [2021-12-19 19:40:17,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2021-12-19 19:40:17,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:40:17,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:40:17,051 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] [2021-12-19 19:40:17,051 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] [2021-12-19 19:40:17,051 INFO L791 eck$LassoCheckResult]: Stem: 1024#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(50, 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;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;~p6~0 := 0;~p6_old~0 := 0;~p6_new~0 := 0;~id6~0 := 0;~st6~0 := 0;~send6~0 := 0;~mode6~0 := 0;~alive6~0 := 0; 955#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc 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~nondet45#1, main_#t~nondet46#1, main_#t~ret47#1, main_#t~ret48#1, main_#t~post49#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~nondet16#1;havoc main_#t~nondet16#1;~id1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~send1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~mode1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~alive1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~id2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~st2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~send2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~mode2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~alive2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~id3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~send3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~alive3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~id4~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~st4~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~send4~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~mode4~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~alive4~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id5~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~st5~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~send5~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~mode5~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~alive5~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~id6~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~st6~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;~send6~0 := main_#t~nondet44#1;havoc main_#t~nondet44#1;~mode6~0 := main_#t~nondet45#1;havoc main_#t~nondet45#1;~alive6~0 := main_#t~nondet46#1;havoc main_#t~nondet46#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 956#L290 assume 0 == ~r1~0; 1001#L291 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 + ~alive5~0 % 256 + ~alive6~0 % 256 >= 1; 1002#L292 assume ~id1~0 >= 0; 1015#L293 assume 0 == ~st1~0; 1023#L294 assume ~send1~0 == ~id1~0; 899#L295 assume 0 == ~mode1~0 % 256; 900#L296 assume ~id2~0 >= 0; 942#L297 assume 0 == ~st2~0; 940#L298 assume ~send2~0 == ~id2~0; 941#L299 assume 0 == ~mode2~0 % 256; 951#L300 assume ~id3~0 >= 0; 989#L301 assume 0 == ~st3~0; 1006#L302 assume ~send3~0 == ~id3~0; 1007#L303 assume 0 == ~mode3~0 % 256; 1018#L304 assume ~id4~0 >= 0; 983#L305 assume 0 == ~st4~0; 984#L306 assume ~send4~0 == ~id4~0; 1000#L307 assume 0 == ~mode4~0 % 256; 910#L308 assume ~id5~0 >= 0; 911#L309 assume 0 == ~st5~0; 996#L310 assume ~send5~0 == ~id5~0; 970#L311 assume 0 == ~mode5~0 % 256; 971#L312 assume ~id6~0 >= 0; 928#L313 assume 0 == ~st6~0; 929#L314 assume ~send6~0 == ~id6~0; 961#L315 assume 0 == ~mode6~0 % 256; 962#L316 assume ~id1~0 != ~id2~0; 897#L317 assume ~id1~0 != ~id3~0; 898#L318 assume ~id1~0 != ~id4~0; 1025#L319 assume ~id1~0 != ~id5~0; 1005#L320 assume ~id1~0 != ~id6~0; 985#L321 assume ~id2~0 != ~id3~0; 986#L322 assume ~id2~0 != ~id4~0; 890#L323 assume ~id2~0 != ~id5~0; 891#L324 assume ~id2~0 != ~id6~0; 917#L325 assume ~id3~0 != ~id4~0; 937#L326 assume ~id3~0 != ~id5~0; 924#L327 assume ~id3~0 != ~id6~0; 925#L328 assume ~id4~0 != ~id5~0; 947#L329 assume ~id4~0 != ~id6~0; 948#L330 assume ~id5~0 != ~id6~0;init_~tmp~0#1 := 1; 972#L290-1 init_#res#1 := init_~tmp~0#1; 892#L455 main_#t~ret47#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret47#1;havoc main_#t~ret47#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; 893#L22 assume !(0 == assume_abort_if_not_~cond#1); 960#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;main_~i2~0#1 := 0; 964#L531-2 [2021-12-19 19:40:17,051 INFO L793 eck$LassoCheckResult]: Loop: 964#L531-2 assume !!(main_~i2~0#1 < 12);assume { :begin_inline_node1 } true;havoc node1_#t~ite4#1, node1_#t~ite5#1, node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 1022#L84 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p6_old~0;~p6_old~0 := ~nomsg~0; 1016#L88 assume !(node1_~m1~0#1 != ~nomsg~0); 950#L88-1 ~mode1~0 := 0; 933#L84-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_#t~ite6#1, node2_#t~ite7#1, node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0; 934#L121 assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 936#L124 assume !(node2_~m2~0#1 != ~nomsg~0); 952#L124-1 ~mode2~0 := 0; 901#L121-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_#t~ite8#1, node3_#t~ite9#1, node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0; 902#L155 assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 914#L158 assume !(node3_~m3~0#1 != ~nomsg~0); 916#L158-1 ~mode3~0 := 0; 997#L155-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_#t~ite10#1, node4_#t~ite11#1, node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0; 1009#L189 assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 1010#L192 assume !(node4_~m4~0#1 != ~nomsg~0); 979#L192-1 ~mode4~0 := 0; 968#L189-2 assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_#t~ite12#1, node5_#t~ite13#1, node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0; 969#L223 assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0; 907#L226 assume !(node5_~m5~0#1 != ~nomsg~0); 909#L226-1 ~mode5~0 := 0; 959#L223-2 assume { :end_inline_node5 } true;assume { :begin_inline_node6 } true;havoc node6_#t~ite14#1, node6_#t~ite15#1, node6_~m6~0#1;havoc node6_~m6~0#1;node6_~m6~0#1 := ~nomsg~0; 974#L257 assume 0 != ~mode6~0 % 256;node6_~m6~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0; 987#L260 assume !(node6_~m6~0#1 != ~nomsg~0); 981#L260-1 ~mode6~0 := 0; 958#L257-2 assume { :end_inline_node6 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 953#L463 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 + ~st6~0 <= 1; 954#L464 assume ~r1~0 < 6;check_~tmp~1#1 := 1; 1019#L463-1 check_#res#1 := check_~tmp~1#1; 994#L475 main_#t~ret48#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret48#1;havoc main_#t~ret48#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; 912#L564 assume !(0 == assert_~arg#1 % 256); 913#L559 assume { :end_inline_assert } true;main_#t~post49#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post49#1;havoc main_#t~post49#1; 964#L531-2 [2021-12-19 19:40:17,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1766357374, now seen corresponding path program 2 times [2021-12-19 19:40:17,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:17,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283734198] [2021-12-19 19:40:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:17,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:40:17,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:40:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:40:17,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:40:17,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash 911844111, now seen corresponding path program 1 times [2021-12-19 19:40:17,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:17,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650102284] [2021-12-19 19:40:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:17,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:40:17,134 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:40:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:40:17,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:40:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1786874990, now seen corresponding path program 1 times [2021-12-19 19:40:17,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:40:17,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617335098] [2021-12-19 19:40:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:40:17,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:40:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:17,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:40:17,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617335098] [2021-12-19 19:40:17,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617335098] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:40:17,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:40:17,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:40:17,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80021188] [2021-12-19 19:40:17,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:40:17,980 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 19:40:17,981 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 19:40:17,981 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 19:40:17,981 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 19:40:17,981 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 19:40:17,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:17,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 19:40:17,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 19:40:17,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-12-19 19:40:17,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 19:40:17,981 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 19:40:17,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,566 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 19:40:18,566 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 19:40:18,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:18,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:18,569 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2021-12-19 19:40:18,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-19 19:40:18,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 19:40:18,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 19:40:18,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-19 19:40:18,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:18,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:18,607 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2021-12-19 19:40:18,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-19 19:40:18,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 19:40:18,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 19:40:18,706 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 19:40:18,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-19 19:40:18,709 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 19:40:18,710 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 19:40:18,710 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 19:40:18,710 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 19:40:18,710 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 19:40:18,710 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:18,710 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 19:40:18,710 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 19:40:18,710 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c_Iteration4_Loop [2021-12-19 19:40:18,710 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 19:40:18,710 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 19:40:18,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:18,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 19:40:19,288 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 19:40:19,291 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 19:40:19,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,293 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2021-12-19 19:40:19,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-19 19:40:19,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,339 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2021-12-19 19:40:19,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-19 19:40:19,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,389 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2021-12-19 19:40:19,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-19 19:40:19,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,431 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2021-12-19 19:40:19,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-19 19:40:19,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,463 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2021-12-19 19:40:19,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-19 19:40:19,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,499 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2021-12-19 19:40:19,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-19 19:40:19,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,507 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-19 19:40:19,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,509 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-19 19:40:19,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,527 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2021-12-19 19:40:19,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-19 19:40:19,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,558 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2021-12-19 19:40:19,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-19 19:40:19,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-19 19:40:19,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,589 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2021-12-19 19:40:19,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-19 19:40:19,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,633 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2021-12-19 19:40:19,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-19 19:40:19,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,673 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2021-12-19 19:40:19,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 19:40:19,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,709 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-12-19 19:40:19,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 19:40:19,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,736 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-12-19 19:40:19,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-19 19:40:19,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,791 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2021-12-19 19:40:19,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-19 19:40:19,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-19 19:40:19,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,816 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2021-12-19 19:40:19,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-19 19:40:19,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 19:40:19,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,845 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2021-12-19 19:40:19,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-19 19:40:19,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 19:40:19,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 19:40:19,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 19:40:19,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 19:40:19,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 19:40:19,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 19:40:19,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 19:40:19,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 19:40:19,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 19:40:19,871 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 19:40:19,871 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 19:40:19,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:40:19,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:40:19,873 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2021-12-19 19:40:19,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-19 19:40:19,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 19:40:19,875 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 19:40:19,875 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 19:40:19,875 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 23 Supporting invariants [] [2021-12-19 19:40:19,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:19,893 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 19:40:19,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:40:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:19,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 19:40:19,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 19:40:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:40:20,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 19:40:20,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 19:40:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:40:20,234 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-19 19:40:20,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 194 transitions. cyclomatic complexity: 56 Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-12-19 19:40:20,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 194 transitions. cyclomatic complexity: 56. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) Result 231 states and 342 transitions. Complement of second has 4 states. [2021-12-19 19:40:20,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 19:40:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-12-19 19:40:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2021-12-19 19:40:20,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 194 transitions. Stem has 47 letters. Loop has 31 letters. [2021-12-19 19:40:20,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 19:40:20,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 194 transitions. Stem has 78 letters. Loop has 31 letters. [2021-12-19 19:40:20,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 19:40:20,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 194 transitions. Stem has 47 letters. Loop has 62 letters. [2021-12-19 19:40:20,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 19:40:20,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 342 transitions. [2021-12-19 19:40:20,297 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 19:40:20,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 0 states and 0 transitions. [2021-12-19 19:40:20,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 19:40:20,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 19:40:20,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 19:40:20,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:40:20,297 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 19:40:20,297 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 19:40:20,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:40:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:40:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:40:20,298 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-12-19 19:40:20,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:40:20,298 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-19 19:40:20,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 19:40:20,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-19 19:40:20,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 19:40:20,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 19:40:20,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 19:40:20,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 19:40:20,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 19:40:20,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:40:20,299 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 19:40:20,299 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 19:40:20,299 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 19:40:20,299 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 19:40:20,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 19:40:20,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 19:40:20,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 19:40:20,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:40:20 BoogieIcfgContainer [2021-12-19 19:40:20,305 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:40:20,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:40:20,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:40:20,305 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:40:20,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:40:16" (3/4) ... [2021-12-19 19:40:20,308 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 19:40:20,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:40:20,313 INFO L158 Benchmark]: Toolchain (without parser) took 5127.95ms. Allocated memory was 90.2MB in the beginning and 140.5MB in the end (delta: 50.3MB). Free memory was 60.5MB in the beginning and 44.6MB in the end (delta: 15.9MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2021-12-19 19:40:20,314 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:40:20,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.94ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 60.3MB in the beginning and 81.8MB in the end (delta: -21.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 19:40:20,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.18ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 78.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:40:20,314 INFO L158 Benchmark]: Boogie Preprocessor took 47.37ms. Allocated memory is still 111.1MB. Free memory was 78.9MB in the beginning and 76.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:40:20,315 INFO L158 Benchmark]: RCFGBuilder took 528.35ms. Allocated memory is still 111.1MB. Free memory was 76.4MB in the beginning and 81.7MB in the end (delta: -5.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-19 19:40:20,315 INFO L158 Benchmark]: BuchiAutomizer took 4243.68ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 81.7MB in the beginning and 44.6MB in the end (delta: 37.1MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2021-12-19 19:40:20,315 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 140.5MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:40:20,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.94ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 60.3MB in the beginning and 81.8MB in the end (delta: -21.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.18ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 78.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.37ms. Allocated memory is still 111.1MB. Free memory was 78.9MB in the beginning and 76.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.35ms. Allocated memory is still 111.1MB. Free memory was 76.4MB in the beginning and 81.7MB in the end (delta: -5.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4243.68ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 81.7MB in the beginning and 44.6MB in the end (delta: 37.1MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 140.5MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 23 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 139 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 343 mSDsluCounter, 2245 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1382 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 863 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital188 mio100 ax100 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 19:40:20,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-19 19:40:20,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE