./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/array-memsafety/cstrspn-alloca-1.i -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 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:25:43,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:25:43,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:25:43,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:25:43,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:25:43,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:25:43,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:25:43,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:25:43,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:25:43,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:25:43,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:25:43,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:25:43,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:25:43,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:25:43,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:25:43,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:25:43,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:25:43,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:25:43,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:25:43,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:25:43,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:25:43,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:25:43,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:25:43,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:25:43,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:25:43,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:25:43,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:25:43,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:25:43,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:25:43,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:25:43,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:25:43,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:25:43,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:25:43,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:25:43,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:25:43,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:25:43,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:25:43,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:25:43,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:25:43,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:25:43,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:25:43,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:25:43,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:25:43,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:25:43,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:25:43,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:25:43,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:25:43,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:25:43,992 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:25:43,993 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:25:43,993 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:25:43,993 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:25:43,993 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:25:43,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:25:43,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:25:43,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:25:43,995 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:25:43,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:25:43,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:25:43,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:25:43,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:25:43,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:25:43,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:25:43,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:25:43,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:25:43,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:25:43,997 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:25:43,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:25:43,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:25:43,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:25:43,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:25:43,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:25:43,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:25:43,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:25:44,000 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:25:44,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45a8f33f173b19ce98ca13bb7c3a70605cebce85501309e729b51c966620adf7 [2021-12-15 17:25:44,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:25:44,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:25:44,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:25:44,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:25:44,228 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:25:44,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2021-12-15 17:25:44,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26372ebf/480e34b1e7104ffba0f7754590ea6de1/FLAG4607b663c [2021-12-15 17:25:44,669 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:25:44,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrspn-alloca-1.i [2021-12-15 17:25:44,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26372ebf/480e34b1e7104ffba0f7754590ea6de1/FLAG4607b663c [2021-12-15 17:25:44,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26372ebf/480e34b1e7104ffba0f7754590ea6de1 [2021-12-15 17:25:44,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:25:44,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:25:44,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:25:44,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:25:44,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:25:44,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:25:44" (1/1) ... [2021-12-15 17:25:44,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bc7aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:44, skipping insertion in model container [2021-12-15 17:25:44,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:25:44" (1/1) ... [2021-12-15 17:25:44,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:25:44,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:25:44,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:25:44,961 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:25:45,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:25:45,040 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:25:45,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45 WrapperNode [2021-12-15 17:25:45,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:25:45,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:25:45,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:25:45,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:25:45,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,101 INFO L137 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2021-12-15 17:25:45,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:25:45,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:25:45,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:25:45,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:25:45,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:25:45,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:25:45,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:25:45,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:25:45,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (1/1) ... [2021-12-15 17:25:45,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:45,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:45,188 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) [2021-12-15 17:25:45,212 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 [2021-12-15 17:25:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 17:25:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 17:25:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 17:25:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 17:25:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:25:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:25:45,341 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:25:45,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:25:45,459 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:25:45,464 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:25:45,464 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 17:25:45,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:25:45 BoogieIcfgContainer [2021-12-15 17:25:45,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:25:45,467 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:25:45,467 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:25:45,473 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:25:45,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:25:45,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:25:44" (1/3) ... [2021-12-15 17:25:45,475 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f5beb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:25:45, skipping insertion in model container [2021-12-15 17:25:45,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:25:45,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:45" (2/3) ... [2021-12-15 17:25:45,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f5beb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:25:45, skipping insertion in model container [2021-12-15 17:25:45,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:25:45,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:25:45" (3/3) ... [2021-12-15 17:25:45,477 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrspn-alloca-1.i [2021-12-15 17:25:45,511 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:25:45,511 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:25:45,512 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:25:45,512 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:25:45,512 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:25:45,512 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:25:45,512 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:25:45,512 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:25:45,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-12-15 17:25:45,546 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-12-15 17:25:45,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:45,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:45,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-15 17:25:45,551 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:45,551 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:25:45,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-12-15 17:25:45,553 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-12-15 17:25:45,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:45,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:45,555 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-15 17:25:45,555 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:45,560 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 11#L532true assume !(main_~length1~0#1 < 1); 6#L532-2true assume !(main_~length2~0#1 < 1); 3#L535-1true call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 20#L541-3true [2021-12-15 17:25:45,561 INFO L793 eck$LassoCheckResult]: Loop: 20#L541-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 25#L541-2true main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 20#L541-3true [2021-12-15 17:25:45,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:45,566 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-12-15 17:25:45,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:45,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279173396] [2021-12-15 17:25:45,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:45,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:45,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:45,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-12-15 17:25:45,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:45,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852890335] [2021-12-15 17:25:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:45,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:45,710 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:45,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:45,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-12-15 17:25:45,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:45,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703799371] [2021-12-15 17:25:45,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:45,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:45,768 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:45,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:46,179 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:25:46,180 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:25:46,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:25:46,180 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:25:46,180 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:25:46,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:25:46,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:25:46,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration1_Lasso [2021-12-15 17:25:46,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:25:46,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:25:46,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:46,597 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:25:46,601 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:25:46,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:46,607 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) [2021-12-15 17:25:46,615 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 [2021-12-15 17:25:46,616 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 [2021-12-15 17:25:46,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:46,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:46,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:46,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:46,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:46,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:46,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:46,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:46,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:46,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:46,669 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) [2021-12-15 17:25:46,678 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 [2021-12-15 17:25:46,678 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 [2021-12-15 17:25:46,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:46,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:46,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:46,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:46,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:46,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:46,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:46,731 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 [2021-12-15 17:25:46,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:46,733 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) [2021-12-15 17:25:46,742 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 [2021-12-15 17:25:46,744 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 [2021-12-15 17:25:46,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:46,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:46,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:46,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:46,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:46,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:46,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:46,796 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 [2021-12-15 17:25:46,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:46,799 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) [2021-12-15 17:25:46,805 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 [2021-12-15 17:25:46,806 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 [2021-12-15 17:25:46,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:46,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:46,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:46,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:46,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:46,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:46,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:46,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:46,858 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 [2021-12-15 17:25:46,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:46,861 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) [2021-12-15 17:25:46,866 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 [2021-12-15 17:25:46,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:46,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:46,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:46,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:46,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:46,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:46,899 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 [2021-12-15 17:25:46,915 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:25:46,966 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-15 17:25:46,966 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-15 17:25:46,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:46,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:46,987 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) [2021-12-15 17:25:47,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:25:47,055 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 [2021-12-15 17:25:47,070 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-15 17:25:47,070 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:25:47,071 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~nondetString1~0#1.offset >= 0] [2021-12-15 17:25:47,096 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 [2021-12-15 17:25:47,111 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-12-15 17:25:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:47,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:25:47,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:47,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-15 17:25:47,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:47,253 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 [2021-12-15 17:25:47,255 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-15 17:25:47,323 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 60 states and 87 transitions. Complement of second has 7 states. [2021-12-15 17:25:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:25:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-12-15 17:25:47,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2021-12-15 17:25:47,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-15 17:25:47,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:47,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-15 17:25:47,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:47,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-15 17:25:47,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:47,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 87 transitions. [2021-12-15 17:25:47,335 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-15 17:25:47,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 20 states and 27 transitions. [2021-12-15 17:25:47,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-15 17:25:47,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-15 17:25:47,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-12-15 17:25:47,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:47,340 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-15 17:25:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-12-15 17:25:47,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-15 17:25:47,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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) [2021-12-15 17:25:47,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-12-15 17:25:47,360 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-15 17:25:47,360 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-15 17:25:47,360 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:25:47,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-12-15 17:25:47,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-15 17:25:47,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:47,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:47,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:47,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:47,362 INFO L791 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 175#L532 assume !(main_~length1~0#1 < 1); 169#L532-2 assume !(main_~length2~0#1 < 1); 165#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 166#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 176#L541-4 main_~i~1#1 := 0; 172#L546-3 [2021-12-15 17:25:47,362 INFO L793 eck$LassoCheckResult]: Loop: 172#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 174#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 172#L546-3 [2021-12-15 17:25:47,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:47,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-12-15 17:25:47,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:47,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71361583] [2021-12-15 17:25:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:47,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:47,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:47,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:47,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-12-15 17:25:47,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:47,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844868048] [2021-12-15 17:25:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:47,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:47,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:47,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:47,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:47,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-12-15 17:25:47,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:47,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341037648] [2021-12-15 17:25:47,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:47,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:47,403 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:47,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:47,622 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 [2021-12-15 17:25:47,697 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:25:47,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:25:47,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:25:47,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:25:47,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:25:47,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:47,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:25:47,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:25:47,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration2_Lasso [2021-12-15 17:25:47,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:25:47,698 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:25:47,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:47,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:48,047 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:25:48,047 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:25:48,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,051 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) [2021-12-15 17:25:48,053 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 [2021-12-15 17:25:48,054 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 [2021-12-15 17:25:48,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,098 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 [2021-12-15 17:25:48,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,100 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) [2021-12-15 17:25:48,106 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 [2021-12-15 17:25:48,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,118 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 [2021-12-15 17:25:48,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,150 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 [2021-12-15 17:25:48,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,152 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) [2021-12-15 17:25:48,153 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 [2021-12-15 17:25:48,155 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 [2021-12-15 17:25:48,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:48,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:48,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,207 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 [2021-12-15 17:25:48,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,209 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) [2021-12-15 17:25:48,221 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 [2021-12-15 17:25:48,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:48,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:48,233 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 [2021-12-15 17:25:48,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:48,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,272 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) [2021-12-15 17:25:48,273 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 [2021-12-15 17:25:48,274 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 [2021-12-15 17:25:48,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,317 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 [2021-12-15 17:25:48,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,319 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) [2021-12-15 17:25:48,320 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 [2021-12-15 17:25:48,321 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 [2021-12-15 17:25:48,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:48,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:48,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,369 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 [2021-12-15 17:25:48,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,371 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) [2021-12-15 17:25:48,372 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 [2021-12-15 17:25:48,373 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 [2021-12-15 17:25:48,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:48,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:48,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,418 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 [2021-12-15 17:25:48,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,419 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) [2021-12-15 17:25:48,420 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 [2021-12-15 17:25:48,421 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 [2021-12-15 17:25:48,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,445 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 [2021-12-15 17:25:48,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,446 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) [2021-12-15 17:25:48,447 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 [2021-12-15 17:25:48,448 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 [2021-12-15 17:25:48,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,470 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 [2021-12-15 17:25:48,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,471 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) [2021-12-15 17:25:48,472 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 [2021-12-15 17:25:48,473 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 [2021-12-15 17:25:48,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:48,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,498 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) [2021-12-15 17:25:48,500 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 [2021-12-15 17:25:48,502 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 [2021-12-15 17:25:48,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:48,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:48,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:48,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,541 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 [2021-12-15 17:25:48,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,543 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) [2021-12-15 17:25:48,550 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 [2021-12-15 17:25:48,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:48,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:48,561 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 [2021-12-15 17:25:48,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:48,599 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 [2021-12-15 17:25:48,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,601 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) [2021-12-15 17:25:48,610 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 [2021-12-15 17:25:48,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:48,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:48,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:48,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:48,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:48,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:48,636 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 [2021-12-15 17:25:48,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:25:48,670 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-15 17:25:48,670 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-15 17:25:48,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:48,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:48,676 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2021-12-15 17:25:48,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-15 17:25:48,681 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:25:48,687 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:25:48,687 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:25:48,688 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~length2~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~length2~0#1 Supporting invariants [] [2021-12-15 17:25:48,703 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 [2021-12-15 17:25:48,728 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-12-15 17:25:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:48,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:25:48,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:48,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:25:48,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:48,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:48,820 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 [2021-12-15 17:25:48,820 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-12-15 17:25:48,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 31 states and 44 transitions. Complement of second has 6 states. [2021-12-15 17:25:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:25:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-12-15 17:25:48,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-12-15 17:25:48,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-15 17:25:48,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:48,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-15 17:25:48,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:48,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-15 17:25:48,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:48,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2021-12-15 17:25:48,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:25:48,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 29 transitions. [2021-12-15 17:25:48,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-15 17:25:48,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-15 17:25:48,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 29 transitions. [2021-12-15 17:25:48,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:48,857 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-12-15 17:25:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 29 transitions. [2021-12-15 17:25:48,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-15 17:25:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 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) [2021-12-15 17:25:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-12-15 17:25:48,860 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-12-15 17:25:48,860 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-12-15 17:25:48,860 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:25:48,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2021-12-15 17:25:48,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:25:48,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:48,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:48,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:48,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:48,865 INFO L791 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 301#L532 assume !(main_~length1~0#1 < 1); 294#L532-2 assume !(main_~length2~0#1 < 1); 290#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 291#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 303#L541-4 main_~i~1#1 := 0; 297#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 298#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 302#L519-4 [2021-12-15 17:25:48,865 INFO L793 eck$LassoCheckResult]: Loop: 302#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 309#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 306#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 310#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 305#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 295#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 296#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 304#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 302#L519-4 [2021-12-15 17:25:48,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:48,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-12-15 17:25:48,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:48,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473463223] [2021-12-15 17:25:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:48,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:48,886 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:48,901 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 1 times [2021-12-15 17:25:48,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:48,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595572914] [2021-12-15 17:25:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:48,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:48,917 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:48,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:48,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1903570310, now seen corresponding path program 1 times [2021-12-15 17:25:48,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:48,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651399595] [2021-12-15 17:25:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:49,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:49,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651399595] [2021-12-15 17:25:49,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651399595] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:49,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:49,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 17:25:49,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686758343] [2021-12-15 17:25:49,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:49,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:49,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-15 17:25:49,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-15 17:25:49,350 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. cyclomatic complexity: 11 Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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) [2021-12-15 17:25:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:49,554 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2021-12-15 17:25:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 17:25:49,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2021-12-15 17:25:49,556 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2021-12-15 17:25:49,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 48 states and 64 transitions. [2021-12-15 17:25:49,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-12-15 17:25:49,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-12-15 17:25:49,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 64 transitions. [2021-12-15 17:25:49,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:49,558 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2021-12-15 17:25:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 64 transitions. [2021-12-15 17:25:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2021-12-15 17:25:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.375) internal successors, (44), 31 states have internal predecessors, (44), 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) [2021-12-15 17:25:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-12-15 17:25:49,561 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-12-15 17:25:49,562 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-12-15 17:25:49,562 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-15 17:25:49,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2021-12-15 17:25:49,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-12-15 17:25:49,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:49,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:49,563 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:49,563 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:25:49,563 INFO L791 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 403#L532 assume !(main_~length1~0#1 < 1); 396#L532-2 assume !(main_~length2~0#1 < 1); 392#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 393#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 411#L541-4 main_~i~1#1 := 0; 399#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 400#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 421#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 420#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 409#L522-5 [2021-12-15 17:25:49,563 INFO L793 eck$LassoCheckResult]: Loop: 409#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 418#L522-1 assume !cstrspn_#t~short7#1; 419#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 409#L522-5 [2021-12-15 17:25:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2087759941, now seen corresponding path program 1 times [2021-12-15 17:25:49,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:49,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326611602] [2021-12-15 17:25:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:49,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:49,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:49,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326611602] [2021-12-15 17:25:49,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326611602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:49,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:49,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 17:25:49,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622255066] [2021-12-15 17:25:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:49,659 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:25:49,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:49,659 INFO L85 PathProgramCache]: Analyzing trace with hash 86558, now seen corresponding path program 1 times [2021-12-15 17:25:49,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:49,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155955872] [2021-12-15 17:25:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:49,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:49,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:49,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155955872] [2021-12-15 17:25:49,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155955872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:49,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:49,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:25:49,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253108762] [2021-12-15 17:25:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:49,670 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:25:49,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:25:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:25:49,671 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. cyclomatic complexity: 17 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-12-15 17:25:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:49,677 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-12-15 17:25:49,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:25:49,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 44 transitions. [2021-12-15 17:25:49,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-12-15 17:25:49,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 44 transitions. [2021-12-15 17:25:49,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-12-15 17:25:49,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-15 17:25:49,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2021-12-15 17:25:49,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:49,680 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-12-15 17:25:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2021-12-15 17:25:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-12-15 17:25:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.34375) internal successors, (43), 31 states have internal predecessors, (43), 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) [2021-12-15 17:25:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2021-12-15 17:25:49,682 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-12-15 17:25:49,683 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2021-12-15 17:25:49,683 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-15 17:25:49,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2021-12-15 17:25:49,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-12-15 17:25:49,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:49,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:49,684 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:49,684 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:25:49,684 INFO L791 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 471#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 479#L532 assume !(main_~length1~0#1 < 1); 472#L532-2 assume !(main_~length2~0#1 < 1); 468#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 469#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 487#L541-4 main_~i~1#1 := 0; 499#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 498#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 497#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 496#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 483#L522-5 [2021-12-15 17:25:49,684 INFO L793 eck$LassoCheckResult]: Loop: 483#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 495#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 482#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 483#L522-5 [2021-12-15 17:25:49,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2087759941, now seen corresponding path program 2 times [2021-12-15 17:25:49,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:49,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948012248] [2021-12-15 17:25:49,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:49,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:49,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:49,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948012248] [2021-12-15 17:25:49,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948012248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:49,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:49,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 17:25:49,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289581379] [2021-12-15 17:25:49,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:49,791 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:25:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 1 times [2021-12-15 17:25:49,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:49,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067625652] [2021-12-15 17:25:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:49,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:49,796 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:49,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:49,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:49,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 17:25:49,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-15 17:25:49,893 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 16 Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-12-15 17:25:49,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:49,975 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-12-15 17:25:49,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 17:25:49,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-12-15 17:25:49,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-15 17:25:49,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 23 states and 30 transitions. [2021-12-15 17:25:49,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-15 17:25:49,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-15 17:25:49,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2021-12-15 17:25:49,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:49,977 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-12-15 17:25:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2021-12-15 17:25:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-12-15 17:25:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 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) [2021-12-15 17:25:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2021-12-15 17:25:49,979 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-12-15 17:25:49,979 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-12-15 17:25:49,979 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-15 17:25:49,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2021-12-15 17:25:49,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-15 17:25:49,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:49,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:49,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:49,980 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:49,981 INFO L791 eck$LassoCheckResult]: Stem: 548#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 557#L532 assume !(main_~length1~0#1 < 1); 550#L532-2 assume !(main_~length2~0#1 < 1); 546#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 547#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 562#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 563#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 558#L541-4 main_~i~1#1 := 0; 553#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 554#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 559#L519-4 [2021-12-15 17:25:49,981 INFO L793 eck$LassoCheckResult]: Loop: 559#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 564#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 567#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 565#L522-1 assume !cstrspn_#t~short7#1; 561#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 551#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 552#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 560#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 559#L519-4 [2021-12-15 17:25:49,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2021-12-15 17:25:49,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:49,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848558743] [2021-12-15 17:25:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:49,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,002 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,010 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:50,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash -903038413, now seen corresponding path program 1 times [2021-12-15 17:25:50,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466017071] [2021-12-15 17:25:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:50,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:50,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466017071] [2021-12-15 17:25:50,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466017071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:50,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:50,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 17:25:50,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170222400] [2021-12-15 17:25:50,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:50,066 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:25:50,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:50,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 17:25:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-15 17:25:50,070 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-12-15 17:25:50,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:50,123 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-12-15 17:25:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 17:25:50,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-12-15 17:25:50,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:25:50,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 23 states and 29 transitions. [2021-12-15 17:25:50,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-12-15 17:25:50,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-12-15 17:25:50,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2021-12-15 17:25:50,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:50,127 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-12-15 17:25:50,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2021-12-15 17:25:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-15 17:25:50,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 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) [2021-12-15 17:25:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-12-15 17:25:50,132 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-12-15 17:25:50,132 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-12-15 17:25:50,132 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-15 17:25:50,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2021-12-15 17:25:50,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:25:50,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:50,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:50,133 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:50,133 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:50,133 INFO L791 eck$LassoCheckResult]: Stem: 614#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 615#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 623#L532 assume !(main_~length1~0#1 < 1); 616#L532-2 assume !(main_~length2~0#1 < 1); 612#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 613#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 629#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 630#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 624#L541-4 main_~i~1#1 := 0; 619#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 620#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 625#L519-4 [2021-12-15 17:25:50,134 INFO L793 eck$LassoCheckResult]: Loop: 625#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 631#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 627#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 632#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 626#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 617#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 618#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 628#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 625#L519-4 [2021-12-15 17:25:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2021-12-15 17:25:50,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440457492] [2021-12-15 17:25:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,154 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:50,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,177 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 2 times [2021-12-15 17:25:50,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185092569] [2021-12-15 17:25:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,194 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:50,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,196 INFO L85 PathProgramCache]: Analyzing trace with hash -164170776, now seen corresponding path program 1 times [2021-12-15 17:25:50,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098315957] [2021-12-15 17:25:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:50,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:25:50,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:50,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098315957] [2021-12-15 17:25:50,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098315957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:50,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:50,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 17:25:50,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921216173] [2021-12-15 17:25:50,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:50,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:50,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-15 17:25:50,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-15 17:25:50,531 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 9 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2021-12-15 17:25:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:50,629 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-12-15 17:25:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 17:25:50,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 43 transitions. [2021-12-15 17:25:50,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-12-15 17:25:50,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 34 states and 41 transitions. [2021-12-15 17:25:50,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-12-15 17:25:50,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-12-15 17:25:50,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2021-12-15 17:25:50,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:50,631 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-12-15 17:25:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2021-12-15 17:25:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-12-15 17:25:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-12-15 17:25:50,634 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-12-15 17:25:50,634 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-12-15 17:25:50,634 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-15 17:25:50,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2021-12-15 17:25:50,634 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-12-15 17:25:50,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:50,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:50,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:50,635 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:50,635 INFO L791 eck$LassoCheckResult]: Stem: 694#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 695#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 704#L532 assume !(main_~length1~0#1 < 1); 696#L532-2 assume !(main_~length2~0#1 < 1); 692#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 693#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 710#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 711#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 705#L541-4 main_~i~1#1 := 0; 699#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 700#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 712#L519-4 [2021-12-15 17:25:50,635 INFO L793 eck$LassoCheckResult]: Loop: 712#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 713#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 719#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 718#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 707#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 708#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 724#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 723#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 722#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 721#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 720#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 712#L519-4 [2021-12-15 17:25:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 3 times [2021-12-15 17:25:50,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143763503] [2021-12-15 17:25:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,663 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:50,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,683 INFO L85 PathProgramCache]: Analyzing trace with hash -898285594, now seen corresponding path program 1 times [2021-12-15 17:25:50,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542474563] [2021-12-15 17:25:50,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:50,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:50,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1809250353, now seen corresponding path program 1 times [2021-12-15 17:25:50,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:50,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715939916] [2021-12-15 17:25:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:25:50,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:50,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715939916] [2021-12-15 17:25:50,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715939916] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:25:50,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071680203] [2021-12-15 17:25:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:50,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:25:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:50,767 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:25:50,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-12-15 17:25:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:50,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-15 17:25:50,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:50,895 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-15 17:25:50,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-15 17:25:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:25:51,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 17:25:51,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071680203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:51,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 17:25:51,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2021-12-15 17:25:51,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804014769] [2021-12-15 17:25:51,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:51,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:51,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 17:25:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-12-15 17:25:51,289 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. cyclomatic complexity: 11 Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2021-12-15 17:25:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:51,391 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-12-15 17:25:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 17:25:51,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-12-15 17:25:51,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:25:51,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 27 transitions. [2021-12-15 17:25:51,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-15 17:25:51,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-15 17:25:51,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2021-12-15 17:25:51,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:51,392 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-15 17:25:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2021-12-15 17:25:51,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-12-15 17:25:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 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) [2021-12-15 17:25:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2021-12-15 17:25:51,394 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-12-15 17:25:51,394 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-12-15 17:25:51,394 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-15 17:25:51,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2021-12-15 17:25:51,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:25:51,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:51,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:51,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:51,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:51,395 INFO L791 eck$LassoCheckResult]: Stem: 849#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 850#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 858#L532 assume !(main_~length1~0#1 < 1); 851#L532-2 assume !(main_~length2~0#1 < 1); 847#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 848#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 864#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 865#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 859#L541-4 main_~i~1#1 := 0; 854#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 855#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 856#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 857#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 860#L519-4 [2021-12-15 17:25:51,395 INFO L793 eck$LassoCheckResult]: Loop: 860#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 866#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 862#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 867#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 861#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 852#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 853#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 863#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 860#L519-4 [2021-12-15 17:25:51,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2021-12-15 17:25:51,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:51,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621549324] [2021-12-15 17:25:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:51,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:51,405 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:51,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:51,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 3 times [2021-12-15 17:25:51,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:51,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268053554] [2021-12-15 17:25:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:51,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:51,418 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:51,422 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:51,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:51,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1875279350, now seen corresponding path program 1 times [2021-12-15 17:25:51,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:51,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420961233] [2021-12-15 17:25:51,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:51,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:51,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:51,444 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:52,434 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:25:52,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:25:52,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:25:52,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:25:52,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:25:52,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:52,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:25:52,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:25:52,435 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration9_Lasso [2021-12-15 17:25:52,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:25:52,435 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:25:52,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:52,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:53,474 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:25:53,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:25:53,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,479 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-12-15 17:25:53,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-15 17:25:53,485 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 [2021-12-15 17:25:53,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,541 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2021-12-15 17:25:53,543 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 [2021-12-15 17:25:53,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-15 17:25:53,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-15 17:25:53,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,582 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-12-15 17:25:53,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-15 17:25:53,584 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 [2021-12-15 17:25:53,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:53,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:53,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-15 17:25:53,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,610 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2021-12-15 17:25:53,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-15 17:25:53,612 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 [2021-12-15 17:25:53,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,635 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2021-12-15 17:25:53,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-15 17:25:53,641 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 [2021-12-15 17:25:53,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,668 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-12-15 17:25:53,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-15 17:25:53,670 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 [2021-12-15 17:25:53,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,692 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-12-15 17:25:53,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-15 17:25:53,695 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 [2021-12-15 17:25:53,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-15 17:25:53,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,718 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-12-15 17:25:53,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-15 17:25:53,720 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 [2021-12-15 17:25:53,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-15 17:25:53,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,745 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-12-15 17:25:53,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-15 17:25:53,751 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 [2021-12-15 17:25:53,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:53,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:53,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-15 17:25:53,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,775 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-12-15 17:25:53,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-15 17:25:53,777 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 [2021-12-15 17:25:53,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,805 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2021-12-15 17:25:53,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-15 17:25:53,807 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 [2021-12-15 17:25:53,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:53,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:53,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-15 17:25:53,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,834 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2021-12-15 17:25:53,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-15 17:25:53,837 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 [2021-12-15 17:25:53,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-15 17:25:53,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,860 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-12-15 17:25:53,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-15 17:25:53,862 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 [2021-12-15 17:25:53,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,885 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-12-15 17:25:53,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-15 17:25:53,887 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 [2021-12-15 17:25:53,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-15 17:25:53,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,922 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-12-15 17:25:53,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-15 17:25:53,924 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 [2021-12-15 17:25:53,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:53,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:53,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:53,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:53,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:53,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:53,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:53,948 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-12-15 17:25:53,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-15 17:25:53,950 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 [2021-12-15 17:25:53,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:53,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:53,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:53,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:53,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:53,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:53,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:54,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:54,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:54,021 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-12-15 17:25:54,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-15 17:25:54,023 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 [2021-12-15 17:25:54,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:54,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:54,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:54,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:54,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:54,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:54,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:54,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:54,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-15 17:25:54,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:54,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:54,055 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-12-15 17:25:54,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-15 17:25:54,058 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 [2021-12-15 17:25:54,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:54,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:54,065 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-15 17:25:54,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:54,074 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-15 17:25:54,075 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-15 17:25:54,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:54,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-15 17:25:54,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:54,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:54,116 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2021-12-15 17:25:54,119 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 [2021-12-15 17:25:54,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:54,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:54,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:54,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:54,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:54,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:54,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-15 17:25:54,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:54,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:54,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:54,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:54,172 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2021-12-15 17:25:54,175 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 [2021-12-15 17:25:54,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:54,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:54,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:54,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:54,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:54,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:54,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-15 17:25:54,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:54,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-15 17:25:54,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:54,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:54,221 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2021-12-15 17:25:54,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-15 17:25:54,223 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 [2021-12-15 17:25:54,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:54,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:54,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:54,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:54,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:54,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:54,255 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:25:54,320 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2021-12-15 17:25:54,321 INFO L444 ModelExtractionUtils]: 13 out of 58 variables were initially zero. Simplification set additionally 40 variables to zero. [2021-12-15 17:25:54,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:54,324 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2021-12-15 17:25:54,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-15 17:25:54,325 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:25:54,331 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-15 17:25:54,331 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:25:54,332 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0#1.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_2) = -1*ULTIMATE.start_cstrspn_~sc1~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_2 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_3 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_3 >= 0] [2021-12-15 17:25:54,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:54,394 INFO L297 tatePredicateManager]: 15 out of 18 supporting invariants were superfluous and have been removed [2021-12-15 17:25:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:54,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-15 17:25:54,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:54,484 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-15 17:25:54,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-12-15 17:25:54,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-15 17:25:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:54,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 17:25:54,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:54,843 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2021-12-15 17:25:54,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-12-15 17:25:55,016 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 47 states and 57 transitions. Complement of second has 11 states. [2021-12-15 17:25:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2021-12-15 17:25:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-12-15 17:25:55,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 35 transitions. [2021-12-15 17:25:55,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 35 transitions. Stem has 13 letters. Loop has 8 letters. [2021-12-15 17:25:55,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:55,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 35 transitions. Stem has 21 letters. Loop has 8 letters. [2021-12-15 17:25:55,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:55,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 35 transitions. Stem has 13 letters. Loop has 16 letters. [2021-12-15 17:25:55,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:55,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 57 transitions. [2021-12-15 17:25:55,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2021-12-15 17:25:55,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 44 states and 54 transitions. [2021-12-15 17:25:55,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-15 17:25:55,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-15 17:25:55,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 54 transitions. [2021-12-15 17:25:55,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:25:55,020 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-12-15 17:25:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 54 transitions. [2021-12-15 17:25:55,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2021-12-15 17:25:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 40 states have internal predecessors, (51), 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) [2021-12-15 17:25:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2021-12-15 17:25:55,023 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-12-15 17:25:55,023 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-12-15 17:25:55,023 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-15 17:25:55,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2021-12-15 17:25:55,023 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2021-12-15 17:25:55,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:55,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:55,024 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:55,024 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:25:55,024 INFO L791 eck$LassoCheckResult]: Stem: 1101#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1102#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1112#L532 assume !(main_~length1~0#1 < 1); 1103#L532-2 assume !(main_~length2~0#1 < 1); 1099#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1100#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1122#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1139#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1138#L541-4 main_~i~1#1 := 0; 1137#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1136#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1135#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1134#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 1133#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1127#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1116#L522-5 [2021-12-15 17:25:55,024 INFO L793 eck$LassoCheckResult]: Loop: 1116#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1128#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1115#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 1116#L522-5 [2021-12-15 17:25:55,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2055034687, now seen corresponding path program 1 times [2021-12-15 17:25:55,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:55,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220354333] [2021-12-15 17:25:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:55,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:55,035 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:55,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:55,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 2 times [2021-12-15 17:25:55,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:55,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127462440] [2021-12-15 17:25:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:55,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:55,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:55,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:55,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:55,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1074579938, now seen corresponding path program 1 times [2021-12-15 17:25:55,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:55,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089156653] [2021-12-15 17:25:55,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:55,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:55,068 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:55,082 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:55,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-15 17:25:56,202 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:25:56,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:25:56,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:25:56,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:25:56,203 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:25:56,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:56,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:25:56,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:25:56,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration10_Lasso [2021-12-15 17:25:56,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:25:56,203 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:25:56,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:56,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:57,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:25:57,469 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:25:57,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,470 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2021-12-15 17:25:57,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-15 17:25:57,472 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 [2021-12-15 17:25:57,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-15 17:25:57,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,498 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2021-12-15 17:25:57,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-15 17:25:57,500 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 [2021-12-15 17:25:57,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-15 17:25:57,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,524 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-12-15 17:25:57,532 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 [2021-12-15 17:25:57,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-15 17:25:57,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:57,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:57,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-15 17:25:57,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,557 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2021-12-15 17:25:57,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-15 17:25:57,559 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 [2021-12-15 17:25:57,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:57,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,583 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2021-12-15 17:25:57,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-15 17:25:57,585 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 [2021-12-15 17:25:57,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-15 17:25:57,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,608 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2021-12-15 17:25:57,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-15 17:25:57,609 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 [2021-12-15 17:25:57,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-15 17:25:57,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,633 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2021-12-15 17:25:57,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-15 17:25:57,635 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 [2021-12-15 17:25:57,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:57,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:57,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:57,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,679 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2021-12-15 17:25:57,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-15 17:25:57,681 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 [2021-12-15 17:25:57,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:57,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,705 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2021-12-15 17:25:57,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-15 17:25:57,706 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 [2021-12-15 17:25:57,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:57,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:57,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-15 17:25:57,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,731 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2021-12-15 17:25:57,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-15 17:25:57,733 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 [2021-12-15 17:25:57,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-15 17:25:57,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,756 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2021-12-15 17:25:57,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-15 17:25:57,758 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 [2021-12-15 17:25:57,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-15 17:25:57,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,781 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2021-12-15 17:25:57,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-15 17:25:57,783 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 [2021-12-15 17:25:57,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:57,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,806 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2021-12-15 17:25:57,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-15 17:25:57,816 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 [2021-12-15 17:25:57,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-15 17:25:57,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,840 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2021-12-15 17:25:57,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-15 17:25:57,842 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 [2021-12-15 17:25:57,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:57,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,898 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2021-12-15 17:25:57,903 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 [2021-12-15 17:25:57,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-15 17:25:57,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-15 17:25:57,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,931 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2021-12-15 17:25:57,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-15 17:25:57,932 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 [2021-12-15 17:25:57,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:57,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:57,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-15 17:25:57,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:57,959 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2021-12-15 17:25:57,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-15 17:25:57,963 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 [2021-12-15 17:25:57,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:57,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:57,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:57,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:57,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:57,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:57,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:57,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:57,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:57,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:57,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,000 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2021-12-15 17:25:58,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-15 17:25:58,002 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 [2021-12-15 17:25:58,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:58,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,027 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2021-12-15 17:25:58,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-15 17:25:58,029 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 [2021-12-15 17:25:58,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-15 17:25:58,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,072 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2021-12-15 17:25:58,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-15 17:25:58,074 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 [2021-12-15 17:25:58,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:58,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,129 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2021-12-15 17:25:58,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-15 17:25:58,131 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 [2021-12-15 17:25:58,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:58,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,157 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2021-12-15 17:25:58,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-15 17:25:58,159 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 [2021-12-15 17:25:58,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-12-15 17:25:58,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,184 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2021-12-15 17:25:58,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-15 17:25:58,188 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 [2021-12-15 17:25:58,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-12-15 17:25:58,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,214 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2021-12-15 17:25:58,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-15 17:25:58,216 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 [2021-12-15 17:25:58,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:58,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-12-15 17:25:58,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,262 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2021-12-15 17:25:58,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-12-15 17:25:58,263 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 [2021-12-15 17:25:58,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:58,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:58,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:58,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:58,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:58,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:58,302 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:25:58,344 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2021-12-15 17:25:58,344 INFO L444 ModelExtractionUtils]: 14 out of 58 variables were initially zero. Simplification set additionally 41 variables to zero. [2021-12-15 17:25:58,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:58,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:58,345 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2021-12-15 17:25:58,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-12-15 17:25:58,347 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:25:58,353 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:25:58,353 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:25:58,354 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0#1.offset, v_rep(select #length ULTIMATE.start_cstrspn_~s~0#1.base)_2) = -1*ULTIMATE.start_cstrspn_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrspn_~s~0#1.base)_2 Supporting invariants [] [2021-12-15 17:25:58,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-12-15 17:25:58,425 INFO L297 tatePredicateManager]: 28 out of 28 supporting invariants were superfluous and have been removed [2021-12-15 17:25:58,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:58,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:25:58,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:58,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 17:25:58,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:58,502 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 [2021-12-15 17:25:58,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-12-15 17:25:58,517 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 84 states and 99 transitions. Complement of second has 5 states. [2021-12-15 17:25:58,517 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 [2021-12-15 17:25:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-12-15 17:25:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2021-12-15 17:25:58,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 15 letters. Loop has 3 letters. [2021-12-15 17:25:58,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:58,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 18 letters. Loop has 3 letters. [2021-12-15 17:25:58,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:58,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 15 letters. Loop has 6 letters. [2021-12-15 17:25:58,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:58,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 99 transitions. [2021-12-15 17:25:58,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2021-12-15 17:25:58,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 66 states and 79 transitions. [2021-12-15 17:25:58,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-12-15 17:25:58,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-12-15 17:25:58,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 79 transitions. [2021-12-15 17:25:58,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:25:58,521 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 79 transitions. [2021-12-15 17:25:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 79 transitions. [2021-12-15 17:25:58,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2021-12-15 17:25:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 54 states have internal predecessors, (67), 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) [2021-12-15 17:25:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2021-12-15 17:25:58,524 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 67 transitions. [2021-12-15 17:25:58,524 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 67 transitions. [2021-12-15 17:25:58,524 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-12-15 17:25:58,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 67 transitions. [2021-12-15 17:25:58,525 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2021-12-15 17:25:58,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:58,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:58,525 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:58,525 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:58,526 INFO L791 eck$LassoCheckResult]: Stem: 1413#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1424#L532 assume !(main_~length1~0#1 < 1); 1415#L532-2 assume !(main_~length2~0#1 < 1); 1411#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1412#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1436#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1463#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1438#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1437#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1425#L541-4 main_~i~1#1 := 0; 1420#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1421#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1422#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1423#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 1457#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1456#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1455#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1453#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1448#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 1416#L522-6 [2021-12-15 17:25:58,526 INFO L793 eck$LassoCheckResult]: Loop: 1416#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 1417#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 1428#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 1429#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1439#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1445#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1449#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1450#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 1416#L522-6 [2021-12-15 17:25:58,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:58,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1399115710, now seen corresponding path program 1 times [2021-12-15 17:25:58,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:58,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388393038] [2021-12-15 17:25:58,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:58,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:58,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:58,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:58,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:58,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1045859025, now seen corresponding path program 4 times [2021-12-15 17:25:58,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:58,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69360434] [2021-12-15 17:25:58,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:58,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:58,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:58,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:58,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:58,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1174254194, now seen corresponding path program 2 times [2021-12-15 17:25:58,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:58,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473224663] [2021-12-15 17:25:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:58,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:58,606 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:58,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:59,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:00,144 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:26:00,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:26:00,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:26:00,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:26:00,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:26:00,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:00,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:26:00,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:26:00,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration11_Lasso [2021-12-15 17:26:00,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:26:00,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:26:00,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:00,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:00,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:00,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:00,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:00,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:01,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:26:01,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:26:01,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:01,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:01,981 INFO L229 MonitoredProcess]: Starting monitored process 71 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) [2021-12-15 17:26:01,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-12-15 17:26:01,983 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 [2021-12-15 17:26:01,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:01,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:01,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:01,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:01,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:01,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:01,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:01,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-12-15 17:26:02,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,005 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2021-12-15 17:26:02,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-12-15 17:26:02,007 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 [2021-12-15 17:26:02,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,031 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2021-12-15 17:26:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-12-15 17:26:02,033 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 [2021-12-15 17:26:02,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:02,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:02,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:02,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-12-15 17:26:02,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,055 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2021-12-15 17:26:02,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-12-15 17:26:02,057 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 [2021-12-15 17:26:02,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,081 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2021-12-15 17:26:02,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-12-15 17:26:02,083 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 [2021-12-15 17:26:02,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:02,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:02,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:02,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,105 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2021-12-15 17:26:02,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-12-15 17:26:02,107 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 [2021-12-15 17:26:02,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,133 INFO L229 MonitoredProcess]: Starting monitored process 77 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) [2021-12-15 17:26:02,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-12-15 17:26:02,135 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 [2021-12-15 17:26:02,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-12-15 17:26:02,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,190 INFO L229 MonitoredProcess]: Starting monitored process 78 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) [2021-12-15 17:26:02,195 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 [2021-12-15 17:26:02,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-12-15 17:26:02,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,238 INFO L229 MonitoredProcess]: Starting monitored process 79 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) [2021-12-15 17:26:02,243 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 [2021-12-15 17:26:02,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-12-15 17:26:02,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-12-15 17:26:02,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,269 INFO L229 MonitoredProcess]: Starting monitored process 80 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) [2021-12-15 17:26:02,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-12-15 17:26:02,271 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 [2021-12-15 17:26:02,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:02,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,295 INFO L229 MonitoredProcess]: Starting monitored process 81 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) [2021-12-15 17:26:02,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-12-15 17:26:02,297 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 [2021-12-15 17:26:02,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:02,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:02,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:02,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:02,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:02,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:02,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:26:02,362 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-12-15 17:26:02,362 INFO L444 ModelExtractionUtils]: 12 out of 58 variables were initially zero. Simplification set additionally 43 variables to zero. [2021-12-15 17:26:02,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:02,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,368 INFO L229 MonitoredProcess]: Starting monitored process 82 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) [2021-12-15 17:26:02,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-12-15 17:26:02,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:26:02,393 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:26:02,393 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:26:02,393 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrspn_~sc1~0#1.base)_3, ULTIMATE.start_cstrspn_~sc1~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_cstrspn_~sc1~0#1.base)_3 - 1*ULTIMATE.start_cstrspn_~sc1~0#1.offset Supporting invariants [] [2021-12-15 17:26:02,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-12-15 17:26:02,455 INFO L297 tatePredicateManager]: 19 out of 19 supporting invariants were superfluous and have been removed [2021-12-15 17:26:02,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:02,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:26:02,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:02,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 17:26:02,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:26:02,567 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-15 17:26:02,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 67 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-15 17:26:02,583 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 67 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 77 states and 94 transitions. Complement of second has 6 states. [2021-12-15 17:26:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:26:02,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-12-15 17:26:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2021-12-15 17:26:02,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 20 letters. Loop has 8 letters. [2021-12-15 17:26:02,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:02,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 28 letters. Loop has 8 letters. [2021-12-15 17:26:02,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:02,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 20 letters. Loop has 16 letters. [2021-12-15 17:26:02,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:02,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 94 transitions. [2021-12-15 17:26:02,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-15 17:26:02,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 62 states and 75 transitions. [2021-12-15 17:26:02,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-12-15 17:26:02,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-12-15 17:26:02,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 75 transitions. [2021-12-15 17:26:02,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:26:02,591 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 75 transitions. [2021-12-15 17:26:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 75 transitions. [2021-12-15 17:26:02,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2021-12-15 17:26:02,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 55 states have internal predecessors, (69), 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) [2021-12-15 17:26:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2021-12-15 17:26:02,594 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 69 transitions. [2021-12-15 17:26:02,594 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 69 transitions. [2021-12-15 17:26:02,594 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-12-15 17:26:02,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 69 transitions. [2021-12-15 17:26:02,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-15 17:26:02,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:26:02,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:26:02,595 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:26:02,595 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:26:02,596 INFO L791 eck$LassoCheckResult]: Stem: 1729#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1730#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1740#L532 assume !(main_~length1~0#1 < 1); 1731#L532-2 assume !(main_~length2~0#1 < 1); 1727#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1728#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1749#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1779#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1776#L541-4 main_~i~1#1 := 0; 1774#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1773#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1772#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1742#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 1743#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1752#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1759#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1781#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1746#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 1734#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 1735#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 1747#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 1748#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 1758#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 1745#L522-5 [2021-12-15 17:26:02,596 INFO L793 eck$LassoCheckResult]: Loop: 1745#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 1755#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 1744#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 1745#L522-5 [2021-12-15 17:26:02,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:02,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1742810479, now seen corresponding path program 3 times [2021-12-15 17:26:02,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:26:02,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051033390] [2021-12-15 17:26:02,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:26:02,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:26:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:02,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:26:02,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:26:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051033390] [2021-12-15 17:26:02,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051033390] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:26:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140612445] [2021-12-15 17:26:02,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-15 17:26:02,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:26:02,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:02,756 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:26:02,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-12-15 17:26:02,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-15 17:26:02,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 17:26:02,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-15 17:26:02,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:02,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-15 17:26:02,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-12-15 17:26:02,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2021-12-15 17:26:03,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-15 17:26:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:26:03,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 17:26:03,141 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 17:26:03,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2021-12-15 17:26:03,147 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 17:26:03,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2021-12-15 17:26:03,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 17:26:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:26:03,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140612445] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 17:26:03,299 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 17:26:03,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2021-12-15 17:26:03,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701033935] [2021-12-15 17:26:03,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 17:26:03,300 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:26:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 3 times [2021-12-15 17:26:03,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:26:03,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388813885] [2021-12-15 17:26:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:26:03,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:26:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:26:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:26:03,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:26:03,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-15 17:26:03,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-12-15 17:26:03,395 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. cyclomatic complexity: 21 Second operand has 17 states, 16 states have (on average 3.25) internal successors, (52), 17 states have internal predecessors, (52), 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) [2021-12-15 17:26:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:26:03,607 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2021-12-15 17:26:03,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 17:26:03,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 64 transitions. [2021-12-15 17:26:03,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-15 17:26:03,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 36 states and 44 transitions. [2021-12-15 17:26:03,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-15 17:26:03,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-15 17:26:03,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2021-12-15 17:26:03,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:26:03,609 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 44 transitions. [2021-12-15 17:26:03,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2021-12-15 17:26:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-12-15 17:26:03,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 34 states have internal predecessors, (43), 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) [2021-12-15 17:26:03,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2021-12-15 17:26:03,611 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2021-12-15 17:26:03,611 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2021-12-15 17:26:03,611 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-12-15 17:26:03,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 43 transitions. [2021-12-15 17:26:03,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-15 17:26:03,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:26:03,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:26:03,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:26:03,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 17:26:03,612 INFO L791 eck$LassoCheckResult]: Stem: 2005#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2006#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 2015#L532 assume !(main_~length1~0#1 < 1); 2007#L532-2 assume !(main_~length2~0#1 < 1); 2003#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 2004#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 2024#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 2025#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 2026#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 2037#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 2016#L541-4 main_~i~1#1 := 0; 2011#L546-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 2012#L546-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 2013#L546-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 2014#L546-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 2017#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 2027#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 2031#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 2033#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 2032#L522-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 2008#L522-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 2009#L524 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 2018#L519-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 2019#L519-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 2028#L519-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 2021#L522-5 [2021-12-15 17:26:03,612 INFO L793 eck$LassoCheckResult]: Loop: 2021#L522-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 2029#L522-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 2020#L522-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 2021#L522-5 [2021-12-15 17:26:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1365761455, now seen corresponding path program 4 times [2021-12-15 17:26:03,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:26:03,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975440964] [2021-12-15 17:26:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:26:03,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:26:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,626 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:26:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:26:03,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:03,639 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 4 times [2021-12-15 17:26:03,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:26:03,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962193376] [2021-12-15 17:26:03,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:26:03,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:26:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,642 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:26:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,645 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:26:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1174254192, now seen corresponding path program 1 times [2021-12-15 17:26:03,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:26:03,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942685118] [2021-12-15 17:26:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:26:03,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:26:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,669 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:26:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:26:03,682 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:26:05,889 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:26:05,889 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:26:05,889 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:26:05,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:26:05,889 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:26:05,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:05,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:26:05,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:26:05,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-1.i_Iteration13_Lasso [2021-12-15 17:26:05,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:26:05,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:26:05,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:05,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:07,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:07,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:07,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:07,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:07,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:07,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:26:08,862 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:26:08,862 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:26:08,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:08,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:08,863 INFO L229 MonitoredProcess]: Starting monitored process 84 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) [2021-12-15 17:26:08,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-12-15 17:26:08,865 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 [2021-12-15 17:26:08,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:08,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:08,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:08,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:08,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:08,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:08,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:08,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:08,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:08,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:08,892 INFO L229 MonitoredProcess]: Starting monitored process 85 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) [2021-12-15 17:26:08,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-12-15 17:26:08,894 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 [2021-12-15 17:26:08,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:08,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:08,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:08,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:08,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:08,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:08,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:08,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:08,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:08,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:08,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:08,917 INFO L229 MonitoredProcess]: Starting monitored process 86 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) [2021-12-15 17:26:08,928 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 [2021-12-15 17:26:08,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-12-15 17:26:08,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:08,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:08,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:08,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:08,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:08,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:08,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:08,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:08,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-12-15 17:26:08,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:08,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:08,953 INFO L229 MonitoredProcess]: Starting monitored process 87 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) [2021-12-15 17:26:08,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-12-15 17:26:08,954 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 [2021-12-15 17:26:08,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:08,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:08,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:08,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:08,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:08,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:08,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:08,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:08,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-12-15 17:26:08,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:08,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:08,977 INFO L229 MonitoredProcess]: Starting monitored process 88 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) [2021-12-15 17:26:08,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-12-15 17:26:08,979 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 [2021-12-15 17:26:08,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:08,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:08,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:08,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:08,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:08,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:08,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:09,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,004 INFO L229 MonitoredProcess]: Starting monitored process 89 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) [2021-12-15 17:26:09,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-12-15 17:26:09,006 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 [2021-12-15 17:26:09,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-12-15 17:26:09,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,030 INFO L229 MonitoredProcess]: Starting monitored process 90 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) [2021-12-15 17:26:09,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-12-15 17:26:09,032 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 [2021-12-15 17:26:09,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-12-15 17:26:09,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,055 INFO L229 MonitoredProcess]: Starting monitored process 91 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) [2021-12-15 17:26:09,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-12-15 17:26:09,057 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 [2021-12-15 17:26:09,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-12-15 17:26:09,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,081 INFO L229 MonitoredProcess]: Starting monitored process 92 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) [2021-12-15 17:26:09,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-12-15 17:26:09,082 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 [2021-12-15 17:26:09,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:09,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:09,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-12-15 17:26:09,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,107 INFO L229 MonitoredProcess]: Starting monitored process 93 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) [2021-12-15 17:26:09,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-12-15 17:26:09,109 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 [2021-12-15 17:26:09,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-12-15 17:26:09,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,132 INFO L229 MonitoredProcess]: Starting monitored process 94 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) [2021-12-15 17:26:09,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-12-15 17:26:09,134 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 [2021-12-15 17:26:09,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-12-15 17:26:09,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,156 INFO L229 MonitoredProcess]: Starting monitored process 95 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) [2021-12-15 17:26:09,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-12-15 17:26:09,158 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 [2021-12-15 17:26:09,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-12-15 17:26:09,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,180 INFO L229 MonitoredProcess]: Starting monitored process 96 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) [2021-12-15 17:26:09,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-12-15 17:26:09,182 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 [2021-12-15 17:26:09,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:09,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,205 INFO L229 MonitoredProcess]: Starting monitored process 97 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) [2021-12-15 17:26:09,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-12-15 17:26:09,207 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 [2021-12-15 17:26:09,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:09,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,229 INFO L229 MonitoredProcess]: Starting monitored process 98 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) [2021-12-15 17:26:09,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-12-15 17:26:09,232 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 [2021-12-15 17:26:09,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-12-15 17:26:09,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,254 INFO L229 MonitoredProcess]: Starting monitored process 99 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) [2021-12-15 17:26:09,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-12-15 17:26:09,256 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 [2021-12-15 17:26:09,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-12-15 17:26:09,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,283 INFO L229 MonitoredProcess]: Starting monitored process 100 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) [2021-12-15 17:26:09,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-12-15 17:26:09,285 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 [2021-12-15 17:26:09,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:26:09,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:26:09,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:26:09,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-12-15 17:26:09,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,307 INFO L229 MonitoredProcess]: Starting monitored process 101 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) [2021-12-15 17:26:09,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-12-15 17:26:09,309 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 [2021-12-15 17:26:09,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:09,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:09,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:26:09,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-12-15 17:26:09,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,334 INFO L229 MonitoredProcess]: Starting monitored process 102 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) [2021-12-15 17:26:09,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-12-15 17:26:09,335 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 [2021-12-15 17:26:09,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:26:09,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:26:09,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:26:09,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:26:09,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:26:09,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:26:09,370 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:26:09,437 INFO L443 ModelExtractionUtils]: Simplification made 36 calls to the SMT solver. [2021-12-15 17:26:09,437 INFO L444 ModelExtractionUtils]: 13 out of 64 variables were initially zero. Simplification set additionally 48 variables to zero. [2021-12-15 17:26:09,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:26:09,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:26:09,438 INFO L229 MonitoredProcess]: Starting monitored process 103 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) [2021-12-15 17:26:09,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-12-15 17:26:09,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:26:09,446 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:26:09,446 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:26:09,447 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_6) = -1*ULTIMATE.start_cstrspn_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_6 Supporting invariants [] [2021-12-15 17:26:09,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-12-15 17:26:09,600 INFO L297 tatePredicateManager]: 54 out of 55 supporting invariants were superfluous and have been removed [2021-12-15 17:26:09,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:09,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 17:26:09,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:09,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 17:26:09,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:26:09,777 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-15 17:26:09,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-15 17:26:09,827 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 48 states and 59 transitions. Complement of second has 7 states. [2021-12-15 17:26:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-15 17:26:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-15 17:26:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-12-15 17:26:09,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-12-15 17:26:09,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:09,828 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-15 17:26:09,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:09,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 17:26:09,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:09,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-12-15 17:26:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:09,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 17:26:09,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:26:10,008 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-15 17:26:10,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-15 17:26:10,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 48 states and 59 transitions. Complement of second has 7 states. [2021-12-15 17:26:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-15 17:26:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-15 17:26:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-12-15 17:26:10,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-12-15 17:26:10,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:10,050 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-15 17:26:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:26:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:10,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 17:26:10,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:26:10,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 17:26:10,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:26:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:26:10,233 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-15 17:26:10,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-15 17:26:10,270 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 43 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 54 states and 65 transitions. Complement of second has 6 states. [2021-12-15 17:26:10,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-15 17:26:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-15 17:26:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2021-12-15 17:26:10,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 25 letters. Loop has 3 letters. [2021-12-15 17:26:10,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:10,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 28 letters. Loop has 3 letters. [2021-12-15 17:26:10,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:10,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 25 letters. Loop has 6 letters. [2021-12-15 17:26:10,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:26:10,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 65 transitions. [2021-12-15 17:26:10,273 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:26:10,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2021-12-15 17:26:10,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-15 17:26:10,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-15 17:26:10,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-15 17:26:10,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:26:10,274 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:26:10,274 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:26:10,274 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:26:10,274 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-12-15 17:26:10,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-15 17:26:10,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:26:10,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-15 17:26:10,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.12 05:26:10 BoogieIcfgContainer [2021-12-15 17:26:10,280 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-15 17:26:10,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 17:26:10,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 17:26:10,280 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 17:26:10,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:25:45" (3/4) ... [2021-12-15 17:26:10,283 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 17:26:10,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 17:26:10,284 INFO L158 Benchmark]: Toolchain (without parser) took 25589.52ms. Allocated memory was 104.9MB in the beginning and 182.5MB in the end (delta: 77.6MB). Free memory was 74.5MB in the beginning and 114.2MB in the end (delta: -39.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,284 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:26:10,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.49ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 73.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.77ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,285 INFO L158 Benchmark]: Boogie Preprocessor took 42.74ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 69.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,285 INFO L158 Benchmark]: RCFGBuilder took 320.43ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 58.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,285 INFO L158 Benchmark]: BuchiAutomizer took 24813.29ms. Allocated memory was 104.9MB in the beginning and 182.5MB in the end (delta: 77.6MB). Free memory was 58.0MB in the beginning and 115.2MB in the end (delta: -57.2MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,286 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 182.5MB. Free memory was 115.2MB in the beginning and 114.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:26:10,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.49ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 73.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.77ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.74ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 69.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.43ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 58.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 24813.29ms. Allocated memory was 104.9MB in the beginning and 182.5MB in the end (delta: 77.6MB). Free memory was 58.0MB in the beginning and 115.2MB in the end (delta: -57.2MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 182.5MB. Free memory was 115.2MB in the beginning and 114.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 13 terminating modules (7 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function -1 * sc1 + unknown-#length-unknown[nondetString2] and consists of 9 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[sc1] + -1 * sc1 and consists of 4 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. 7 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.7s and 14 iterations. TraceHistogramMax:2. Analysis of lassos took 21.9s. Construction of modules took 0.4s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 9. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 43 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 56 states and ocurred in iteration 11. Nontrivial modules had stage [5, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 539 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 536 mSDsluCounter, 880 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 13 IncrementalHoareTripleChecker+Unchecked, 607 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 623 IncrementalHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 273 mSDtfsCounter, 623 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI1 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital337 mio100 ax107 hnf99 lsp93 ukn76 mio100 lsp41 div112 bol100 ite100 ukn100 eq174 hnf86 smp97 dnf369 smp54 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-15 17:26:10,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-12-15 17:26:10,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-12-15 17:26:10,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE